I priced some transformers from HAMMOND for my Stewart Warner project. The two 2.5 V ones weren't pricey about 16.00 ea) but the HV one with an extra 5V winding was!!! Then after I got these I would have to mount THREE transformers to do the job.
Do any of you guys on the internet have a transformer that comes close to these specifications? I would obviously rather try ONE transformer rather than have to remount THREE!!!
TRANSFORMER OUTPUTS
5 V @ 3 amps
250V CT at 100 ma (that is 500V line to line with a center tap)
2.5 V @ 4 amps
2.5 V @ 10 amps
So FOUR windings total on the output, 115 V line input.
Thanks All
Lou
PS: My e-mail address is included in this post so if anyone have anything close, please let me know.
Lou
:
:I priced some transformers from HAMMOND for my Stewart Warner project. The two 2.5 V ones weren't pricey about 16.00 ea) but the HV one with an extra 5V winding was!!! Then after I got these I would have to mount THREE transformers to do the job.
:
:Do any of you guys on the internet have a transformer that comes close to these specifications? I would obviously rather try ONE transformer rather than have to remount THREE!!!
:
:TRANSFORMER OUTPUTS
:
:5 V @ 3 amps
:250V CT at 100 ma (that is 500V line to line with a center tap)
:2.5 V @ 4 amps
:2.5 V @ 10 amps
:
:So FOUR windings total on the output, 115 V line input.
:
:Thanks All
:Lou
:
:PS: My e-mail address is included in this post so if anyone have anything close, please let me know.
:
:Lou
:
:
Hi Lou, checked out my parts dungen but all I have is a 630 with a center tap, 6.5 and 5.0. You could contact John at Radio Daze he might be able to find one for you . Good Luck, George T
Clifton
::Guys:
::
::I priced some transformers from HAMMOND for my Stewart Warner project. The two 2.5 V ones weren't pricey about 16.00 ea) but the HV one with an extra 5V winding was!!! Then after I got these I would have to mount THREE transformers to do the job.
::
::Do any of you guys on the internet have a transformer that comes close to these specifications? I would obviously rather try ONE transformer rather than have to remount THREE!!!
::
::TRANSFORMER OUTPUTS
::
::5 V @ 3 amps
::250V CT at 100 ma (that is 500V line to line with a center tap)
::2.5 V @ 4 amps
::2.5 V @ 10 amps
::
::So FOUR windings total on the output, 115 V line input.
::
::Thanks All
::Lou
::
::PS: My e-mail address is included in this post so if anyone have anything close, please let me know.
::
::Lou
::
::
:Hi Lou, checked out my parts dungen but all I have is a 630 with a center tap, 6.5 and 5.0. You could contact John at Radio Daze he might be able to find one for you . Good Luck, George T
:
http://www.oldradioparts.com/pg2a23f.htm I have his transformer list transposed to EXCEL and just plugged in your numbers and instantly came up with these possibilities of using just 2 transformers. Under his filament transformers: (IT IS A NECESSITY to e mail for an actual CURRENT stock check on items . . . . along with the possible ambiguity on the PILOT transformers, even though they seem to be assigned different stock numbers.) Then all mating 4+4 surfaces are fluxed up and solder tinned.The final operation is a reflow soldering of all surfaces after the two are telescoped together. Then the outer "canned transformer" receives a good degreasing, wet and dry abrading of any remnal initial finish coating, then a re-degreasing. EVEN to this day, if I have a real snazzy test instrument or power audio construction project, I still use that rehousing of transformers and a BRUSHED Its very commom for me to use two back to back filament transformers to get an AC line isolated transformer with their resultant filament and voltage doubled B+ voltage. Thassssit . . . . |
:
:
: : :  : : : : : : : : : : : Sir Lou:. . . . . . : : : : :With your wierd and demanding combination of power / voltage /amperage needs . . . .beggars can't be choosey . . . . since this is not 1928 and you can't just order the sets OEM transformer. : : : : : :http://www.oldradioparts.com/pg2a23f.htm : : : : : :I have his transformer list transposed to EXCEL and just plugged in your numbers and instantly came up with these possibilities of using just 2 transformers. : : : :Under his filament transformers: : : :1364-675 FILAMENT PILOT #407 5V @.5A, 2.5V @10A, 2.5V@3.6A, FIG 1, 6 SIDE LUGS, AC CORD 1 2 3/4 3 3/4 3 3/8 $13.25 : : :1458-326 FILAMENT JEFFERSON 2670 2.5 VCT @4A, 2.5VCT AT 8A, PRI WIRES, FIG ENC, SIDE LUGS,U 1 3 3/4 3 0/0 2 3/4 $8.75 : : :4591-008 FILAMENT PILOT #407 5V @5A, 2.5V @10A, 2.5V @3.6A, FIG 1, POST EACH SIDE, USED 1 2 3/4 3 3/4 3 1/8 $13.25 : : : :(IT IS A NECESSITY to e mail for an actual CURRENT stock check on items . . . . along with the possible ambiguity on the PILOT transformers, even though they seem to be assigned different stock numbers.) : : : : :Under his power transformers: : : : :1522-110 POWER TRUETONE B12A-18 250-0-250V @90ma, 5V @2A, 6.3V @2.1A, FIG 1,BOTTOM WIRES,U 1 2 7/8 3 1/2 3 1/8 $14.25 : : :4518-130 POWER UNKNOWN # 250-0-250V @100ma, 6.3V @3A (NO 5V), FIG 1, BOT WIRES, USD 1 2 7/8 3 3/8 3 3/8 $14.25 : : :4578-117 POWER PHILCO 65-8187 265-0-265V @75ma, 6.3V @4A, FIG 2, 2 BOLT MTG, WIRES, USED 1 3 0/0 1 3/4 2 1/2 $13.75 : : :1427-097 POWER UNK K-59133 260-0-260V @100ma, 5V 2A, 12.6VCT 2A, FIG 2, BOT WIRES,NEW 2 3 3/4 2 5/8 3 1/8 $22.00 : : :1427-098 POWER UNK K-59133 260-0-260V @100ma, 5V 2A, 12.6VCT 2A, F2, MINOR RUST TOP,N 1 3 3/4 2 5/8 3 1/8 $21.00 : : :1318-380 POWER UNK 91987-2 240-0-240V @90ma, 6.3V @2A, FIG 2, BOTTOM WIRES, USED..... 1 3 0/0 2 1/4 2 1/2 $13.00 : : :1012-513 POWER UNKNOWN A-429 265-0-265V @120ma, 6.3V @3A, 6.3V @1.2A, FIG 1, WIRES, USD 1 4 0/0 3 7/8 3 1/4 17.50 : : : : : : : :As per the end situation of "prettying" up the situation, I once got ooooooooohs and aaaaaaaaahhs when I initially took two ugly duckling transformers and mounted their tabs to a slightly overall larger 1/2in thick plywood block. : : :I then used a rectangular tin can (Coleman Fuel) for my outer housing with its rolled around seam still being retained at the very top with the overall height being trimmed down at the cans bottom to create about a 1-2 inch clearance above the transformers overall height. : : :Other tin can stock is used to make a flat mounting plate for the presently open bottom end of the can. : : :4 upward bent 1/2 in flanges on all four sides of that made bottom plate are toyed with until they finally just closely telescope within the bottom of :the main can. : : :Then make the transformers leads feed thru the wood block and that bottom metal tin plate plate, along with using 4 quad spaced out brass 6/8/10-32 bolts for mounting, having their heads soldered within the tin bottom plate. : : : :Then all mating 4+4 surfaces are fluxed up and solder tinned.The final operation is a reflow soldering of all surfaces after the two are telescoped together. : : : :Then the outer "canned transformer" receives a good degreasing, wet and dry abrading of any remnal initial finish coating, then a re-degreasing. : : :Then a good primer goes on and then the final black crackle finish is applied. : : :Comes out Bee-Yoot-i-Ful . . . . . even somewhat overall antiquated. : : : :EVEN to this day, if I have a real snazzy test instrument or power audio construction project, I still use that rehousing of transformers and a BRUSHED :ALUMINUM plate( linear drawn #100 wet n' dry + 409 cleaner) on its very top, with the 4 outer sides and bottom case proper made of internal angle stock :and co-joined aluminum plates. : : : :Its very commom for me to use two back to back filament transformers to get an AC line isolated transformer with their resultant filament and voltage doubled B+ voltage. : : : :Thassssit . . . . : : : : : : : : : : : : :73's de Edd : : :  : : : : : : : : What's the difference between a smart man and a stupid man? . . . . . Nothing.. . . . it seems that they both think they know everything.. : : : : : : |
:
:
:
I refine and define . . . . one of the Pilot #407 is spec'd at .5 amp on its 5 VAC winding, which I am sure is really 5 Amps.
What 5 V tube do you know that only pulls 1/2 an amp ?
::
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::
::
::
::
::
::
::
::
::
::
:: Sir Lou:. . . . . .
::
::
::
::
::With your wierd and demanding combination of power / voltage /amperage needs . . . .beggars can't be choosey . . . . since this is not 1928 and you can't just order the sets OEM transformer.
::
::
::
::
::
::http://www.oldradioparts.com/pg2a23f.htm
::
::
::
::
::
::I have his transformer list transposed to EXCEL and just plugged in your numbers and instantly came up with these possibilities of using just 2 transformers.
::
::
::
::Under his filament transformers:
::
::
::1364-675 FILAMENT PILOT #407 5V @.5A, 2.5V @10A, 2.5V@3.6A, FIG 1, 6 SIDE LUGS, AC CORD 1 2 3/4 3 3/4 3 3/8 $13.25
::
::
::1458-326 FILAMENT JEFFERSON 2670 2.5 VCT @4A, 2.5VCT AT 8A, PRI WIRES, FIG ENC, SIDE LUGS,U 1 3 3/4 3 0/0 2 3/4 $8.75
::
::
::4591-008 FILAMENT PILOT #407 5V @5A, 2.5V @10A, 2.5V @3.6A, FIG 1, POST EACH SIDE, USED 1 2 3/4 3 3/4 3 1/8 $13.25
::
::
::
::(IT IS A NECESSITY to e mail for an actual CURRENT stock check on items . . . . along with the possible ambiguity on the PILOT transformers, even though they seem to be assigned different stock numbers.)
::
::
::
::
::Under his power transformers:
::
::
::
::1522-110 POWER TRUETONE B12A-18 250-0-250V @90ma, 5V @2A, 6.3V @2.1A, FIG 1,BOTTOM WIRES,U 1 2 7/8 3 1/2 3 1/8 $14.25
::
::
::4518-130 POWER UNKNOWN # 250-0-250V @100ma, 6.3V @3A (NO 5V), FIG 1, BOT WIRES, USD 1 2 7/8 3 3/8 3 3/8 $14.25
::
::
::4578-117 POWER PHILCO 65-8187 265-0-265V @75ma, 6.3V @4A, FIG 2, 2 BOLT MTG, WIRES, USED 1 3 0/0 1 3/4 2 1/2 $13.75
::
::
::1427-097 POWER UNK K-59133 260-0-260V @100ma, 5V 2A, 12.6VCT 2A, FIG 2, BOT WIRES,NEW 2 3 3/4 2 5/8 3 1/8 $22.00
::
::
::1427-098 POWER UNK K-59133 260-0-260V @100ma, 5V 2A, 12.6VCT 2A, F2, MINOR RUST TOP,N 1 3 3/4 2 5/8 3 1/8 $21.00
::
::
::1318-380 POWER UNK 91987-2 240-0-240V @90ma, 6.3V @2A, FIG 2, BOTTOM WIRES, USED..... 1 3 0/0 2 1/4 2 1/2 $13.00
::
::
::1012-513 POWER UNKNOWN A-429 265-0-265V @120ma, 6.3V @3A, 6.3V @1.2A, FIG 1, WIRES, USD 1 4 0/0 3 7/8 3 1/4 17.50
::
::
::
::
::
::
::
::As per the end situation of "prettying" up the situation, I once got ooooooooohs and aaaaaaaaahhs when I initially took two ugly duckling transformers and mounted their tabs to a slightly overall larger 1/2in thick plywood block.
::
::
::I then used a rectangular tin can (Coleman Fuel) for my outer housing with its rolled around seam still being retained at the very top with the overall height being trimmed down at the cans bottom to create about a 1-2 inch clearance above the transformers overall height.
::
::
::Other tin can stock is used to make a flat mounting plate for the presently open bottom end of the can.
::
::
::4 upward bent 1/2 in flanges on all four sides of that made bottom plate are toyed with until they finally just closely telescope within the bottom of
::the main can.
::
::
::Then make the transformers leads feed thru the wood block and that bottom metal tin plate plate, along with using 4 quad spaced out brass 6/8/10-32 bolts for mounting, having their heads soldered within the tin bottom plate.
::
::
::
::Then all mating 4+4 surfaces are fluxed up and solder tinned.The final operation is a reflow soldering of all surfaces after the two are telescoped together.
::
::
::
::Then the outer "canned transformer" receives a good degreasing, wet and dry abrading of any remnal initial finish coating, then a re-degreasing.
::
::
::Then a good primer goes on and then the final black crackle finish is applied.
::
::
::Comes out Bee-Yoot-i-Ful . . . . . even somewhat overall antiquated.
::
::
::
::EVEN to this day, if I have a real snazzy test instrument or power audio construction project, I still use that rehousing of transformers and a BRUSHED
::ALUMINUM plate( linear drawn #100 wet n' dry + 409 cleaner) on its very top, with the 4 outer sides and bottom case proper made of internal angle stock
::and co-joined aluminum plates.
::
::
::
::Its very commom for me to use two back to back filament transformers to get an AC line isolated transformer with their resultant filament and voltage doubled B+ voltage.
::
::
::
::Thassssit . . . .
::
::
::
::
::
::
::
::
::
::
::
::
::73's de Edd
::
::
::
::
::
::
::
::
::
::
:: What's the difference between a smart man and a stupid man? . . . . . Nothing.. . . . it seems that they both think they know everything..
::
::
::
::
::
::
::
::
::
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: