What is this component?

[ChrisM]

Restoring an old German radio from the 1940's/1950's. Removed this component thinking it was an electrolytic cap.

Upon removing the component I can't decide what it really is. It has a + marking on one lead and it measures 9.5uF. Maybe it's a 10uF cap?

[IMG:768:1024]http://img.photobucket.com/albums/v610/kurtlives/440DB2C1-1222-4B3C-AE4C-7D401ADD1C12.jpg[/img]

Don't have a schematic for said amp

It read's

ELKONDA
ELYT
A4/100V
ddb

[DonMoose]

Yup - a cap.
ELectrolYTic
100V
10u seems a good guess, but over the 60 years or so it may have degraded from some even higher value. I think it looks too small to be higher than 47u, though.

[JazzGuitarGimp]

The only caps I've seen that have a bullet sticking out the end were tantalum, but that was in the eighties, and may not apply to a cap that old.

[ChrisM]

Hmmm the amp is weak sounding now after replacing that "cap"

So maybe it wasn't a cap. What else could it be?

[teemuk]

It's probably easier for us to answer if we knew what German radio it actually was, or if we knew from which place in the circuit - and what type of circuit - you removed that component from...

If it's not a cap then maybe it's a bias battery. Then again the tuner/receiver circuit may have had all kinds of odd components.

[roberto]

Elkonda produced electrolytic capacitors, not batteries, AFAIK.
Same for Elyt.

Post some pictures of the radio.
They are not so complicated, I've repaired some of that era.

[Structo]

I have seen similar tantalum capacitors.

How big is that thing?

[ChrisM]

It's about an inch long

This is the radio
[IMG768]http://img.photobucket.com/albums/v610/kurtlives/0b8c32ce-22ba-4290-b052-f48dae86c355.jpg[/img]

Radio is a Rekord Junior 196, can't find a schematic

[matt h]

(deleted)

[ChrisM]

Any chance it's like a monster diode/passive regulator sorta thing?

Need a schematic to tell

[roberto]

Where was it? Take a picture of the radio now, showing the name of the tubes.

[Sazafraz]

Think the schematic service manual in this (dont have radio museum log in)

http://www.radiomuseum.org/r/emud_196.html

This looks like somebody's rebuild but i don't see that part in it

http://www.ppinyot.com/E/record_junior_196.htm

[ChrisM]

The component connects from pin 1 of the EAA91 (6AL5) to a ground post. This same grounding post also has a connection to the OT (?).

The component in question has been replaced with the blue cap seen pictured here
[IMG1365]http://img.photobucket.com/albums/v610/kurtlives/9777E8D7-DE7F-4F6B-B323-4D75C2AD4469.jpg[/img]

Sazafraz I think you need to pay for access unfortunately

[fishy]

This link has some pics and info.....not sure if it will help.

www.ppinyot.com/E/record_junior_196.htm

[roberto]

http://www.r-type.org/pdfs/eaa91.pdf