I know the transformer in my Arvin 518 is shorted. The tube set is 6A7, 41, 76,78, 80. I know I need 6.3V, 5 volts and something around 400V from the transformer, but admittedly I am on the edge of my knowledge and experience. The schematic tells me I need 385 on the plate of the 80 and I should measure 325 at the cathode of the 80. Ok, so I am guessing I can use a Hammond transformer that supplies the 5v and 6.3v with either 375, 400 or 425 volts in a vertical mount. I see the catalog provides RMS voltages, so I am struggling with two things: What is the right transformer to order in terms of voltage and in terms of output amps. Is there is a chart or formula that I can use to figure this stuff out for myself (both current and voltage requirements).

Hi Bruce

Whatever transformer you buy be sure it fits on the radio chassis.

You will need 5 volts @ 2 amps, 6.3 volts around 2 amps and a high voltage winding. If the original transformer had 385-0-385 volts use 375-0-375 volts @ 70 ma. You could use higher current ratings but a transformer will be larger.

Check PTOP, sometimes they have exact replacements at lower cost.

http://www.oldradioparts.com/2a23efl.txt

Norm

:I know the transformer in my Arvin 518 is shorted. The tube set is 6A7, 41, 76,78, 80. I know I need 6.3V, 5 volts and something around 400V from the transformer, but admittedly I am on the edge of my knowledge and experience. The schematic tells me I need 385 on the plate of the 80 and I should measure 325 at the cathode of the 80. Ok, so I am guessing I can use a Hammond transformer that supplies the 5v and 6.3v with either 375, 400 or 425 volts in a vertical mount. I see the catalog provides RMS voltages, so I am struggling with two things: What is the right transformer to order in terms of voltage and in terms of output amps. Is there is a chart or formula that I can use to figure this stuff out for myself (both current and voltage requirements).

Thanks Norm, PTOP has one that I think is a great fit, assuming it is in stock. If so, it is about 27 bucks cheaper than new. Believe it or not, after 7 years of collecting and playing with old radios, I didnt know about PTOP. Must be a problem with my antique Spartan internet browser from the thirties :>)
Bruce

Hi Bruce
:
: Whatever transformer you buy be sure it fits on the radio chassis.
:
: You will need 5 volts @ 2 amps, 6.3 volts around 2 amps and a high voltage winding. If the original transformer had 385-0-385 volts use 375-0-375 volts @ 70 ma. You could use higher current ratings but a transformer will be larger.
:
: Check PTOP, sometimes they have exact replacements at lower cost.
:
:http://www.oldradioparts.com/2a23efl.txt
:
:Norm
:
:
:
::I know the transformer in my Arvin 518 is shorted. The tube set is 6A7, 41, 76,78, 80. I know I need 6.3V, 5 volts and something around 400V from the transformer, but admittedly I am on the edge of my knowledge and experience. The schematic tells me I need 385 on the plate of the 80 and I should measure 325 at the cathode of the 80. Ok, so I am guessing I can use a Hammond transformer that supplies the 5v and 6.3v with either 375, 400 or 425 volts in a vertical mount. I see the catalog provides RMS voltages, so I am struggling with two things: What is the right transformer to order in terms of voltage and in terms of output amps. Is there is a chart or formula that I can use to figure this stuff out for myself (both current and voltage requirements).

Be warned and be patient, it is sometimes hard to get GS (owner of PTOP) off his can to look for things. His personality can go from flat to wet mop in about 2 milliseconds.

EC

:Thanks Norm, PTOP has one that I think is a great fit, assuming it is in stock. If so, it is about 27 bucks cheaper than new. Believe it or not, after 7 years of collecting and playing with old radios, I didnt know about PTOP. Must be a problem with my antique Spartan internet browser from the thirties :>)
:Bruce
:
:Hi Bruce
::
:: Whatever transformer you buy be sure it fits on the radio chassis.
::
:: You will need 5 volts @ 2 amps, 6.3 volts around 2 amps and a high voltage winding. If the original transformer had 385-0-385 volts use 375-0-375 volts @ 70 ma. You could use higher current ratings but a transformer will be larger.
::
:: Check PTOP, sometimes they have exact replacements at lower cost.
::
::http://www.oldradioparts.com/2a23efl.txt
::
::Norm
::
::
::
:::I know the transformer in my Arvin 518 is shorted. The tube set is 6A7, 41, 76,78, 80. I know I need 6.3V, 5 volts and something around 400V from the transformer, but admittedly I am on the edge of my knowledge and experience. The schematic tells me I need 385 on the plate of the 80 and I should measure 325 at the cathode of the 80. Ok, so I am guessing I can use a Hammond transformer that supplies the 5v and 6.3v with either 375, 400 or 425 volts in a vertical mount. I see the catalog provides RMS voltages, so I am struggling with two things: What is the right transformer to order in terms of voltage and in terms of output amps. Is there is a chart or formula that I can use to figure this stuff out for myself (both current and voltage requirements).

Thanks Eric, I was just getting antsy because he has not responded to my email requesting verification (per his web site). Perhaps I will be patient for a couple of days. Bruce

:Be warned and be patient, it is sometimes hard to get GS (owner of PTOP) off his can to look for things. His personality can go from flat to wet mop in about 2 milliseconds.
:
:EC
:
::Thanks Norm, PTOP has one that I think is a great fit, assuming it is in stock. If so, it is about 27 bucks cheaper than new. Believe it or not, after 7 years of collecting and playing with old radios, I didnt know about PTOP. Must be a problem with my antique Spartan internet browser from the thirties :>)
::Bruce
::
::Hi Bruce
:::
::: Whatever transformer you buy be sure it fits on the radio chassis.
:::
::: You will need 5 volts @ 2 amps, 6.3 volts around 2 amps and a high voltage winding. If the original transformer had 385-0-385 volts use 375-0-375 volts @ 70 ma. You could use higher current ratings but a transformer will be larger.
:::
::: Check PTOP, sometimes they have exact replacements at lower cost.
:::
:::http://www.oldradioparts.com/2a23efl.txt
:::
:::Norm
:::
:::
:::
::::I know the transformer in my Arvin 518 is shorted. The tube set is 6A7, 41, 76,78, 80. I know I need 6.3V, 5 volts and something around 400V from the transformer, but admittedly I am on the edge of my knowledge and experience. The schematic tells me I need 385 on the plate of the 80 and I should measure 325 at the cathode of the 80. Ok, so I am guessing I can use a Hammond transformer that supplies the 5v and 6.3v with either 375, 400 or 425 volts in a vertical mount. I see the catalog provides RMS voltages, so I am struggling with two things: What is the right transformer to order in terms of voltage and in terms of output amps. Is there is a chart or formula that I can use to figure this stuff out for myself (both current and voltage requirements).

Eric,
I beg to differ with you. I've had only 1st Class service from PTOP and Gary who runs the show. His operation is one of a kind, with old original parts available nowhere else, and at reasonable cost. If you follow the site directions about email inquiry, you'll get the proper response as I did last nite. I posted an inquiry (evening PST), and his response was in my inbox this AM. No doubt order on its way too, and no outrageous FEDEX, UPS charges or mangled boxes. Just 2-3 days to CA at a reasonable cost with USPS.

marv

:Be warned and be patient, it is sometimes hard to get GS (owner of PTOP) off his can to look for things. His personality can go from flat to wet mop in about 2 milliseconds.
:
:EC
:
::Thanks Norm, PTOP has one that I think is a great fit, assuming it is in stock. If so, it is about 27 bucks cheaper than new. Believe it or not, after 7 years of collecting and playing with old radios, I didnt know about PTOP. Must be a problem with my antique Spartan internet browser from the thirties :>)
::Bruce
::
::Hi Bruce
:::
::: Whatever transformer you buy be sure it fits on the radio chassis.
:::
::: You will need 5 volts @ 2 amps, 6.3 volts around 2 amps and a high voltage winding. If the original transformer had 385-0-385 volts use 375-0-375 volts @ 70 ma. You could use higher current ratings but a transformer will be larger.
:::
::: Check PTOP, sometimes they have exact replacements at lower cost.
:::
:::http://www.oldradioparts.com/2a23efl.txt
:::
:::Norm
:::
:::
:::
::::I know the transformer in my Arvin 518 is shorted. The tube set is 6A7, 41, 76,78, 80. I know I need 6.3V, 5 volts and something around 400V from the transformer, but admittedly I am on the edge of my knowledge and experience. The schematic tells me I need 385 on the plate of the 80 and I should measure 325 at the cathode of the 80. Ok, so I am guessing I can use a Hammond transformer that supplies the 5v and 6.3v with either 375, 400 or 425 volts in a vertical mount. I see the catalog provides RMS voltages, so I am struggling with two things: What is the right transformer to order in terms of voltage and in terms of output amps. Is there is a chart or formula that I can use to figure this stuff out for myself (both current and voltage requirements).

Eric,
As quoted in my earlier post "order probably on its way" At 7:55 EDT (while posting here), PTOP (Gary) email confirmed order on its way. Don't expect Gary to do detailed research for you, and with the 1000's of items he has on hand, it would be impossible anyway.

marv

:Be warned and be patient, it is sometimes hard to get GS (owner of PTOP) off his can to look for things. His personality can go from flat to wet mop in about 2 milliseconds.
:
:EC
:
::Thanks Norm, PTOP has one that I think is a great fit, assuming it is in stock. If so, it is about 27 bucks cheaper than new. Believe it or not, after 7 years of collecting and playing with old radios, I didnt know about PTOP. Must be a problem with my antique Spartan internet browser from the thirties :>)
::Bruce
::
::Hi Bruce
:::
::: Whatever transformer you buy be sure it fits on the radio chassis.
:::
::: You will need 5 volts @ 2 amps, 6.3 volts around 2 amps and a high voltage winding. If the original transformer had 385-0-385 volts use 375-0-375 volts @ 70 ma. You could use higher current ratings but a transformer will be larger.
:::
::: Check PTOP, sometimes they have exact replacements at lower cost.
:::
:::http://www.oldradioparts.com/2a23efl.txt
:::
:::Norm
:::
:::
:::
::::I know the transformer in my Arvin 518 is shorted. The tube set is 6A7, 41, 76,78, 80. I know I need 6.3V, 5 volts and something around 400V from the transformer, but admittedly I am on the edge of my knowledge and experience. The schematic tells me I need 385 on the plate of the 80 and I should measure 325 at the cathode of the 80. Ok, so I am guessing I can use a Hammond transformer that supplies the 5v and 6.3v with either 375, 400 or 425 volts in a vertical mount. I see the catalog provides RMS voltages, so I am struggling with two things: What is the right transformer to order in terms of voltage and in terms of output amps. Is there is a chart or formula that I can use to figure this stuff out for myself (both current and voltage requirements).

Marv,
That's just what I'm talking about, how can you know if a certain part is what you really need since you can't actually see it. You are totally dependent on GS to be your eyes and ears but I have found him to be unwilling to be of the most minimal help at times. I have met him in person too. He's not a real "warm and fuzzy" kind of guy. But, I'm glad your experience has been good. It does seem the originator of this post is having problems though...

:Eric,
:As quoted in my earlier post "order probably on its way" At 7:55 EDT (while posting here), PTOP (Gary) email confirmed order on its way. Don't expect Gary to do detailed research for you, and with the 1000's of items he has on hand, it would be impossible anyway.
:
:marv
:
::Be warned and be patient, it is sometimes hard to get GS (owner of PTOP) off his can to look for things. His personality can go from flat to wet mop in about 2 milliseconds.
::
::EC
::
:::Thanks Norm, PTOP has one that I think is a great fit, assuming it is in stock. If so, it is about 27 bucks cheaper than new. Believe it or not, after 7 years of collecting and playing with old radios, I didnt know about PTOP. Must be a problem with my antique Spartan internet browser from the thirties :>)
:::Bruce
:::
:::Hi Bruce
::::
:::: Whatever transformer you buy be sure it fits on the radio chassis.
::::
:::: You will need 5 volts @ 2 amps, 6.3 volts around 2 amps and a high voltage winding. If the original transformer had 385-0-385 volts use 375-0-375 volts @ 70 ma. You could use higher current ratings but a transformer will be larger.
::::
:::: Check PTOP, sometimes they have exact replacements at lower cost.
::::
::::http://www.oldradioparts.com/2a23efl.txt
::::
::::Norm
::::
::::
::::
:::::I know the transformer in my Arvin 518 is shorted. The tube set is 6A7, 41, 76,78, 80. I know I need 6.3V, 5 volts and something around 400V from the transformer, but admittedly I am on the edge of my knowledge and experience. The schematic tells me I need 385 on the plate of the 80 and I should measure 325 at the cathode of the 80. Ok, so I am guessing I can use a Hammond transformer that supplies the 5v and 6.3v with either 375, 400 or 425 volts in a vertical mount. I see the catalog provides RMS voltages, so I am struggling with two things: What is the right transformer to order in terms of voltage and in terms of output amps. Is there is a chart or formula that I can use to figure this stuff out for myself (both current and voltage requirements).

Eric,
Having spent several hours over the years researching PTOP's on-line catalog, its almost like the "Library of Congress" of radio parts, new and old. I think he sells "old radio parts", not detailed research on obscure widgets for nameless sets.

marv

:Marv,
:That's just what I'm talking about, how can you know if a certain part is what you really need since you can't actually see it. You are totally dependent on GS to be your eyes and ears but I have found him to be unwilling to be of the most minimal help at times. I have met him in person too. He's not a real "warm and fuzzy" kind of guy. But, I'm glad your experience has been good. It does seem the originator of this post is having problems though...
:
::Eric,
::As quoted in my earlier post "order probably on its way" At 7:55 EDT (while posting here), PTOP (Gary) email confirmed order on its way. Don't expect Gary to do detailed research for you, and with the 1000's of items he has on hand, it would be impossible anyway.
::
::marv
::
:::Be warned and be patient, it is sometimes hard to get GS (owner of PTOP) off his can to look for things. His personality can go from flat to wet mop in about 2 milliseconds.
:::
:::EC
:::
::::Thanks Norm, PTOP has one that I think is a great fit, assuming it is in stock. If so, it is about 27 bucks cheaper than new. Believe it or not, after 7 years of collecting and playing with old radios, I didnt know about PTOP. Must be a problem with my antique Spartan internet browser from the thirties :>)
::::Bruce
::::
::::Hi Bruce
:::::
::::: Whatever transformer you buy be sure it fits on the radio chassis.
:::::
::::: You will need 5 volts @ 2 amps, 6.3 volts around 2 amps and a high voltage winding. If the original transformer had 385-0-385 volts use 375-0-375 volts @ 70 ma. You could use higher current ratings but a transformer will be larger.
:::::
::::: Check PTOP, sometimes they have exact replacements at lower cost.
:::::
:::::http://www.oldradioparts.com/2a23efl.txt
:::::
:::::Norm
:::::
:::::
:::::
::::::I know the transformer in my Arvin 518 is shorted. The tube set is 6A7, 41, 76,78, 80. I know I need 6.3V, 5 volts and something around 400V from the transformer, but admittedly I am on the edge of my knowledge and experience. The schematic tells me I need 385 on the plate of the 80 and I should measure 325 at the cathode of the 80. Ok, so I am guessing I can use a Hammond transformer that supplies the 5v and 6.3v with either 375, 400 or 425 volts in a vertical mount. I see the catalog provides RMS voltages, so I am struggling with two things: What is the right transformer to order in terms of voltage and in terms of output amps. Is there is a chart or formula that I can use to figure this stuff out for myself (both current and voltage requirements).

Marv, I agree with a lot of what you say. He does provide an invaluable, one-of-a-kind service that I have used in the past and would hate to see end. But...... he could be a little more personable. The few things I have asked him were no where near "detailed research" - just common radio knowledge on common radios. It is funny that at the AWA meet in Rochester, I have often heard collectors refer to him as "Mr. Personality". That alone tells me I'm not the only one that finds him just a bit abrasive. So, I guess we'll have to agree to disagree.

:Eric,
:Having spent several hours over the years researching PTOP's on-line catalog, its almost like the "Library of Congress" of radio parts, new and old. I think he sells "old radio parts", not detailed research on obscure widgets for nameless sets.
:
:marv
:
::Marv,
::That's just what I'm talking about, how can you know if a certain part is what you really need since you can't actually see it. You are totally dependent on GS to be your eyes and ears but I have found him to be unwilling to be of the most minimal help at times. I have met him in person too. He's not a real "warm and fuzzy" kind of guy. But, I'm glad your experience has been good. It does seem the originator of this post is having problems though...
::
:::Eric,
:::As quoted in my earlier post "order probably on its way" At 7:55 EDT (while posting here), PTOP (Gary) email confirmed order on its way. Don't expect Gary to do detailed research for you, and with the 1000's of items he has on hand, it would be impossible anyway.
:::
:::marv
:::
::::Be warned and be patient, it is sometimes hard to get GS (owner of PTOP) off his can to look for things. His personality can go from flat to wet mop in about 2 milliseconds.
::::
::::EC
::::
:::::Thanks Norm, PTOP has one that I think is a great fit, assuming it is in stock. If so, it is about 27 bucks cheaper than new. Believe it or not, after 7 years of collecting and playing with old radios, I didnt know about PTOP. Must be a problem with my antique Spartan internet browser from the thirties :>)
:::::Bruce
:::::
:::::Hi Bruce
::::::
:::::: Whatever transformer you buy be sure it fits on the radio chassis.
::::::
:::::: You will need 5 volts @ 2 amps, 6.3 volts around 2 amps and a high voltage winding. If the original transformer had 385-0-385 volts use 375-0-375 volts @ 70 ma. You could use higher current ratings but a transformer will be larger.
::::::
:::::: Check PTOP, sometimes they have exact replacements at lower cost.
::::::
::::::http://www.oldradioparts.com/2a23efl.txt
::::::
::::::Norm
::::::
::::::
::::::
:::::::I know the transformer in my Arvin 518 is shorted. The tube set is 6A7, 41, 76,78, 80. I know I need 6.3V, 5 volts and something around 400V from the transformer, but admittedly I am on the edge of my knowledge and experience. The schematic tells me I need 385 on the plate of the 80 and I should measure 325 at the cathode of the 80. Ok, so I am guessing I can use a Hammond transformer that supplies the 5v and 6.3v with either 375, 400 or 425 volts in a vertical mount. I see the catalog provides RMS voltages, so I am struggling with two things: What is the right transformer to order in terms of voltage and in terms of output amps. Is there is a chart or formula that I can use to figure this stuff out for myself (both current and voltage requirements).

Eric,
Your observations may be accurate in the context of getting info, however, mine has been only of a business nature. You got this part for sale and I want to buy it, so to speak. For me, price and quick turnaround is the Hallmark of my association with PTOP. My only communications with PTOP has been via email to place an order or inquiry. I've used a few other vendors (with minor problems), but PTOP stands out in my mind for service and prices, so I continue to use their service. As an example, UPS and FEDEX are my biggest gripes, with their outrageous charges and 7-8 day guarentee. Recently I started to purchase 10 LEDs ($15), a small envelope in bubble wrap, but with calculated UPS shipping charges of $8.50. No thank you!!! I've had similar responses from an antique trunk parts supplier. This place doesn't even quote separate shipping charges, but are included in item's price. In my mailbox in 3 days from the east coast.

marv

:Marv, I agree with a lot of what you say. He does provide an invaluable, one-of-a-kind service that I have used in the past and would hate to see end. But...... he could be a little more personable. The few things I have asked him were no where near "detailed research" - just common radio knowledge on common radios. It is funny that at the AWA meet in Rochester, I have often heard collectors refer to him as "Mr. Personality". That alone tells me I'm not the only one that finds him just a bit abrasive. So, I guess we'll have to agree to disagree.
:
:
:
:
::Eric,
::Having spent several hours over the years researching PTOP's on-line catalog, its almost like the "Library of Congress" of radio parts, new and old. I think he sells "old radio parts", not detailed research on obscure widgets for nameless sets.
::
::marv
::
:::Marv,
:::That's just what I'm talking about, how can you know if a certain part is what you really need since you can't actually see it. You are totally dependent on GS to be your eyes and ears but I have found him to be unwilling to be of the most minimal help at times. I have met him in person too. He's not a real "warm and fuzzy" kind of guy. But, I'm glad your experience has been good. It does seem the originator of this post is having problems though...
:::
::::Eric,
::::As quoted in my earlier post "order probably on its way" At 7:55 EDT (while posting here), PTOP (Gary) email confirmed order on its way. Don't expect Gary to do detailed research for you, and with the 1000's of items he has on hand, it would be impossible anyway.
::::
::::marv
::::
:::::Be warned and be patient, it is sometimes hard to get GS (owner of PTOP) off his can to look for things. His personality can go from flat to wet mop in about 2 milliseconds.
:::::
:::::EC
:::::
::::::Thanks Norm, PTOP has one that I think is a great fit, assuming it is in stock. If so, it is about 27 bucks cheaper than new. Believe it or not, after 7 years of collecting and playing with old radios, I didnt know about PTOP. Must be a problem with my antique Spartan internet browser from the thirties :>)
::::::Bruce
::::::
::::::Hi Bruce
:::::::
::::::: Whatever transformer you buy be sure it fits on the radio chassis.
:::::::
::::::: You will need 5 volts @ 2 amps, 6.3 volts around 2 amps and a high voltage winding. If the original transformer had 385-0-385 volts use 375-0-375 volts @ 70 ma. You could use higher current ratings but a transformer will be larger.
:::::::
::::::: Check PTOP, sometimes they have exact replacements at lower cost.
:::::::
:::::::http://www.oldradioparts.com/2a23efl.txt
:::::::
:::::::Norm
:::::::
:::::::
:::::::
::::::::I know the transformer in my Arvin 518 is shorted. The tube set is 6A7, 41, 76,78, 80. I know I need 6.3V, 5 volts and something around 400V from the transformer, but admittedly I am on the edge of my knowledge and experience. The schematic tells me I need 385 on the plate of the 80 and I should measure 325 at the cathode of the 80. Ok, so I am guessing I can use a Hammond transformer that supplies the 5v and 6.3v with either 375, 400 or 425 volts in a vertical mount. I see the catalog provides RMS voltages, so I am struggling with two things: What is the right transformer to order in terms of voltage and in terms of output amps. Is there is a chart or formula that I can use to figure this stuff out for myself (both current and voltage requirements).

Eric,
Another item I failed to mention is shipping. It appears that UPS and FEDEX is for the vendors convenience, and certainly not mine, with their outrageous charges for 7-8 day delivery, coast to coast. In my case, one size does not fit all, and I refuse to do business with those vendors that heap these unworthy services on me, the unsuspecting customer.

marv

:Marv, I agree with a lot of what you say. He does provide an invaluable, one-of-a-kind service that I have used in the past and would hate to see end. But...... he could be a little more personable. The few things I have asked him were no where near "detailed research" - just common radio knowledge on common radios. It is funny that at the AWA meet in Rochester, I have often heard collectors refer to him as "Mr. Personality". That alone tells me I'm not the only one that finds him just a bit abrasive. So, I guess we'll have to agree to disagree.
:
:
:
:
::Eric,
::Having spent several hours over the years researching PTOP's on-line catalog, its almost like the "Library of Congress" of radio parts, new and old. I think he sells "old radio parts", not detailed research on obscure widgets for nameless sets.
::
::marv
::
:::Marv,
:::That's just what I'm talking about, how can you know if a certain part is what you really need since you can't actually see it. You are totally dependent on GS to be your eyes and ears but I have found him to be unwilling to be of the most minimal help at times. I have met him in person too. He's not a real "warm and fuzzy" kind of guy. But, I'm glad your experience has been good. It does seem the originator of this post is having problems though...
:::
::::Eric,
::::As quoted in my earlier post "order probably on its way" At 7:55 EDT (while posting here), PTOP (Gary) email confirmed order on its way. Don't expect Gary to do detailed research for you, and with the 1000's of items he has on hand, it would be impossible anyway.
::::
::::marv
::::
:::::Be warned and be patient, it is sometimes hard to get GS (owner of PTOP) off his can to look for things. His personality can go from flat to wet mop in about 2 milliseconds.
:::::
:::::EC
:::::
::::::Thanks Norm, PTOP has one that I think is a great fit, assuming it is in stock. If so, it is about 27 bucks cheaper than new. Believe it or not, after 7 years of collecting and playing with old radios, I didnt know about PTOP. Must be a problem with my antique Spartan internet browser from the thirties :>)
::::::Bruce
::::::
::::::Hi Bruce
:::::::
::::::: Whatever transformer you buy be sure it fits on the radio chassis.
:::::::
::::::: You will need 5 volts @ 2 amps, 6.3 volts around 2 amps and a high voltage winding. If the original transformer had 385-0-385 volts use 375-0-375 volts @ 70 ma. You could use higher current ratings but a transformer will be larger.
:::::::
::::::: Check PTOP, sometimes they have exact replacements at lower cost.
:::::::
:::::::http://www.oldradioparts.com/2a23efl.txt
:::::::
:::::::Norm
:::::::
:::::::
:::::::
::::::::I know the transformer in my Arvin 518 is shorted. The tube set is 6A7, 41, 76,78, 80. I know I need 6.3V, 5 volts and something around 400V from the transformer, but admittedly I am on the edge of my knowledge and experience. The schematic tells me I need 385 on the plate of the 80 and I should measure 325 at the cathode of the 80. Ok, so I am guessing I can use a Hammond transformer that supplies the 5v and 6.3v with either 375, 400 or 425 volts in a vertical mount. I see the catalog provides RMS voltages, so I am struggling with two things: What is the right transformer to order in terms of voltage and in terms of output amps. Is there is a chart or formula that I can use to figure this stuff out for myself (both current and voltage requirements).