Hello All.
I'm unable to find any service data for this radio. It also says Gavotte before the 5691. There is a sprague capacitor inside. Someone installed a 1900 mf and then put a 500 mf in parallel with it. This doesn't seem correct. It looks like the original capacitor was much smaller. This is in the area of the rectifier and power transformer. Yes, this looks like the flilter capacitor. I'm wondering what value and working voltage it's supposed to be.

Thanks,

Dave

Dave,
I did one of those beasts a while back, and as I remember it there were three electrolytics of 50mf each. And Maybe one other, but nothing like what you found in the set you have. I do remember paralleling up several, probably 47s and 10s to get 57s. I worked in any event.
Good luck,
Jim

Jim,
This is a solid state set from 1965. If that's all it is what voltage are the filter capacitors? I have a 100 mf at 160 volts. Could that be sufficient? I wonder why there are such large capacitor values there.

Thanks,

Dave
:Dave,
:I did one of those beasts a while back, and as I remember it there were three electrolytics of 50mf each. And Maybe one other, but nothing like what you found in the set you have. I do remember paralleling up several, probably 47s and 10s to get 57s. I worked in any event.
:Good luck,
:Jim

Dave

High value electrolytics were used in transistor radios but at low voltage. Measure voltage across the cap. Most likely 2000 mf @ 25 volts will work. These high value, low voltage caps can usually be found at Radio Shack.

Transistor radios draw more current but operate on low voltage, need more capacity. Your 100 mf @ 160 volts is a tube circuit value.

Norm

:Jim,
: This is a solid state set from 1965. If that's all it is what voltage are the filter capacitors? I have a 100 mf at 160 volts. Could that be sufficient? I wonder why there are such large capacitor values there.
:
:Thanks,
:
:Dave
::Dave,
::I did one of those beasts a while back, and as I remember it there were three electrolytics of 50mf each. And Maybe one other, but nothing like what you found in the set you have. I do remember paralleling up several, probably 47s and 10s to get 57s. I worked in any event.
::Good luck,
::Jim

Norm,
I'll try a 2200 mf capacitor.

Thanks,

Dave
:Dave
:
: High value electrolytics were used in transistor radios but at low voltage. Measure voltage across the cap. Most likely 2000 mf @ 25 volts will work. These high value, low voltage caps can usually be found at Radio Shack.
:
: Transistor radios draw more current but operate on low voltage, need more capacity. Your 100 mf @ 160 volts is a tube circuit value.
:
:Norm
:
:
:
::Jim,
:: This is a solid state set from 1965. If that's all it is what voltage are the filter capacitors? I have a 100 mf at 160 volts. Could that be sufficient? I wonder why there are such large capacitor values there.
::
::Thanks,
::
::Dave
:::Dave,
:::I did one of those beasts a while back, and as I remember it there were three electrolytics of 50mf each. And Maybe one other, but nothing like what you found in the set you have. I do remember paralleling up several, probably 47s and 10s to get 57s. I worked in any event.
:::Good luck,
:::Jim

Norm,
The selenium diode bridge was weak as well. I now hear the sound of an open resistor in the output stage (distorted sound). Without a schematic it may be a bit difficult to find. With 4 1N4007s, I get 28 volts. With the defective diode bridge I got 27 volts. I don't think much of a dropping resistor is going to be needed. But I guess the current was a bit low. I still wish someone had the schematic for this transistorized Telefunken.

Thanks,

Dave
:Norm,
: I'll try a 2200 mf capacitor.
:
:Thanks,
:
:Dave
::Dave
::
:: High value electrolytics were used in transistor radios but at low voltage. Measure voltage across the cap. Most likely 2000 mf @ 25 volts will work. These high value, low voltage caps can usually be found at Radio Shack.
::
:: Transistor radios draw more current but operate on low voltage, need more capacity. Your 100 mf @ 160 volts is a tube circuit value.
::
::Norm
::
::
::
:::Jim,
::: This is a solid state set from 1965. If that's all it is what voltage are the filter capacitors? I have a 100 mf at 160 volts. Could that be sufficient? I wonder why there are such large capacitor values there.
:::
:::Thanks,
:::
:::Dave
::::Dave,
::::I did one of those beasts a while back, and as I remember it there were three electrolytics of 50mf each. And Maybe one other, but nothing like what you found in the set you have. I do remember paralleling up several, probably 47s and 10s to get 57s. I worked in any event.
::::Good luck,
::::Jim

Whoops. Sorry for the confusion Dave. My Gavotte was a few years earlier and tube type. That explains a lot.
Jim