Ok so when I comes to what the tubes electrically I do I get a little baffled, I do admit. So here is where I am stuck. A model 80 chassis I am tinkering with has this issue with the 36 det. osc. p to k volts at 4 where it shold be 245. sg to k milivolts.
The second det. p to k milivolts (should be 40) and 6 sg to k that should be 15.
Do I need to chase to coils down or is there something else common to look for?
By the way when a cd player was hooked to plate and grounded I do get some sound out the speaker.
(at 2nd det.)
Other tube volts are really close.

Blackbird,

You may want to make a check of the power supply. One thing to check is the minus of the input cap (34). It's minus goes to the centertap of the HV winding of the power transformer and not the chassis. May want to check the resistor (36) from the centertap to chassis and the cap (37) across it(it's minus goes to the centertap and it's plus to the chassis). The resistor from the centertap to chassis should be around 400 Ohms resistance.

Radiodoc

:Ok so when I comes to what the tubes electrically I do I get a little baffled, I do admit. So here is where I am stuck. A model 80 chassis I am tinkering with has this issue with the 36 det. osc. p to k volts at 4 where it shold be 245. sg to k milivolts.
:The second det. p to k milivolts (should be 40) and 6 sg to k that should be 15.
:Do I need to chase to coils down or is there something else common to look for?
:By the way when a cd player was hooked to plate and grounded I do get some sound out the speaker.
:(at 2nd det.)
:Other tube volts are really close.

:Blackbird,
:
:You may want to make a check of the power supply. One thing to check is the minus of the input cap (34). It's minus goes to the centertap of the HV winding of the power transformer and not the chassis. May want to check the resistor (36) from the centertap to chassis and the cap (37) across it(it's minus goes to the centertap and it's plus to the chassis). The resistor from the centertap to chassis should be around 400 Ohms resistance.
:
:Radiodoc
:
::Ok so when I comes to what the tubes electrically I do I get a little baffled, I do admit. So here is where I am stuck. A model 80 chassis I am tinkering with has this issue with the 36 det. osc. p to k volts at 4 where it shold be 245. sg to k milivolts.
::The second det. p to k milivolts (should be 40) and 6 sg to k that should be 15.
::Do I need to chase to coils down or is there something else common to look for?
::By the way when a cd player was hooked to plate and grounded I do get some sound out the speaker.
::(at 2nd det.)
::Other tube volts are really close.

Hi Blackbird and Radiodoc,
High voltage is there for the other tubes, but not there on the front end. Your idea, Blackbird, of trying to trace back through the coils to find the high voltage is good troubleshooting. Do it.
While you are doing it, don't be surprised if you find a broken wire.

Best Regards,

Bill Grimm

::Blackbird,
::
::You may want to make a check of the power supply. One thing to check is the minus of the input cap (34). It's minus goes to the centertap of the HV winding of the power transformer and not the chassis. May want to check the resistor (36) from the centertap to chassis and the cap (37) across it(it's minus goes to the centertap and it's plus to the chassis). The resistor from the centertap to chassis should be around 400 Ohms resistance.
::
::Radiodoc
::
:::Ok so when I comes to what the tubes electrically I do I get a little baffled, I do admit. So here is where I am stuck. A model 80 chassis I am tinkering with has this issue with the 36 det. osc. p to k volts at 4 where it shold be 245. sg to k milivolts.
:::The second det. p to k milivolts (should be 40) and 6 sg to k that should be 15.
:::Do I need to chase to coils down or is there something else common to look for?
:::By the way when a cd player was hooked to plate and grounded I do get some sound out the speaker.
:::(at 2nd det.)
:::Other tube volts are really close.
:
:Hi Blackbird and Radiodoc,
: High voltage is there for the other tubes, but not there on the front end. Your idea, Blackbird, of trying to trace back through the coils to find the high voltage is good troubleshooting. Do it.
: While you are doing it, don't be surprised if you find a broken wire.
:
:Best Regards,
:
:Bill Grimm

Thanks Mr. Grimm. I overlooked the sentence about the other voltages being correct, however, he may have found something while poking around in that area.

Radiodoc

doc and mr grimm...
I found the # 6 transformer gone on one winding bypassed with a low-ohm resistor still nothing, noticed a mica cap (# 5 I think) with a ground rivet that was loose. jumped to ground. Got voltage back at p & k. I know that coil needs replacing. I am sure the #2 antenna x-former is gone too, as nothing is doing at the volume contol. Thanks for the tips...time for some coils. How do the generics work out for you guys? Or should I send them to ron rameriez?

:::Blackbird,
:::
:::You may want to make a check of the power supply. One thing to check is the minus of the input cap (34). It's minus goes to the centertap of the HV winding of the power transformer and not the chassis. May want to check the resistor (36) from the centertap to chassis and the cap (37) across it(it's minus goes to the centertap and it's plus to the chassis). The resistor from the centertap to chassis should be around 400 Ohms resistance.
:::
:::Radiodoc
:::
::::Ok so when I comes to what the tubes electrically I do I get a little baffled, I do admit. So here is where I am stuck. A model 80 chassis I am tinkering with has this issue with the 36 det. osc. p to k volts at 4 where it shold be 245. sg to k milivolts.
::::The second det. p to k milivolts (should be 40) and 6 sg to k that should be 15.
::::Do I need to chase to coils down or is there something else common to look for?
::::By the way when a cd player was hooked to plate and grounded I do get some sound out the speaker.
::::(at 2nd det.)
::::Other tube volts are really close.
::
::Hi Blackbird and Radiodoc,
:: High voltage is there for the other tubes, but not there on the front end. Your idea, Blackbird, of trying to trace back through the coils to find the high voltage is good troubleshooting. Do it.
:: While you are doing it, don't be surprised if you find a broken wire.
::
::Best Regards,
::
::Bill Grimm
:
:Thanks Mr. Grimm. I overlooked the sentence about the other voltages being correct, however, he may have found something while poking around in that area.
:
:Radiodoc
: