Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12, 2025) x

Thread Closed

PT96 - low plate voltage
#10

Was also thinking if you are the adventurist type and you had a small audio amp you could see if the rest of the set is working. The amp could be something like the amplified speakers for your computer. Two important things 1# You must use an isolation transformer or make sure that the chaiss doesn't have 120VAC between it and earth ground. If you don't have an isolation transformer you can connect your volt meter to the chaiss and earth ground with it set on AC volts plug the set in. With it plugged in one way it will show 120AC turn the plug around and plug it back in and it will read 0V AC. You want it to read 0 VOLTS. If you try it the other way you can get a helluva shock and cause other thing hooked to to burn up. Don't ask me how I know! #2 Must use a cap to couple the audio signal from the set to the amp. Size isn't vary important anything from 500mmfd to .1mfd is OK 200v or better. Solder it to pin 2 of the 7C6 other end goes to amp input. Double check voltage from amp chaiss to radio chaiss . Should be 0 VAC. Hookup just the filament pins on the 50L6 like before.
Terry

When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got it!

Terry


Messages In This Thread
PT96 - low plate voltage - by Carl Travis - 01-23-2010, 10:39 AM
Re: PT96 - low plate voltage - by 7estatdef - 01-23-2010, 09:46 PM
Re: PT96 - low plate voltage - by Carl Travis - 01-24-2010, 10:51 AM
Re: PT96 - low plate voltage - by codefox1 - 01-24-2010, 12:13 PM
Re: PT96 - low plate voltage - by Carl Travis - 01-25-2010, 11:42 AM
Re: PT96 - low plate voltage - by 7estatdef - 01-25-2010, 01:28 PM
Re: PT96 - low plate voltage - by codefox1 - 01-25-2010, 02:26 PM
Re: PT96 - low plate voltage - by Carl Travis - 01-27-2010, 12:14 PM
Re: PT96 - low plate voltage - by 7estatdef - 01-27-2010, 06:25 PM
Re: PT96 - low plate voltage - by 7estatdef - 01-27-2010, 07:04 PM
Re: PT96 - low plate voltage - by codefox1 - 01-27-2010, 08:50 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Plug Voltages Needed For A 1943 CRV-20130 Power Supply
That looks a lot like an aircraft connector of some kind, even if it's a U.S.N power supply. I have a book somewhere abo...Arran — 02:56 AM
Plug Voltages Needed For A 1943 CRV-20130 Power Supply
hello david, I have a similar generator in my collection that features a cast iron, single-cylinder Briggs & Stratt...radiorich — 01:00 AM
under chassis parts locator diagram for 1938 Zenith 9s262
Has anyone gone to the trouble of creating an under chassis parts locator image?  Yes, I can identify components by foll...bobloney — 08:57 PM
Plug Voltages Needed For A 1943 CRV-20130 Power Supply
Try looking at this site the book mark is for a old generator that I was given. David    https://radionerds.com/index.ph...David — 08:36 PM
Plug Voltages Needed For A 1943 CRV-20130 Power Supply
Hello Everyone, I am looking for voltage identification for all the pin positions on the socket of a CRV-20130 power su...Tonym4704 — 08:16 PM
Philco P45-6365 Universal Transformer Instruction Manual
Can anyone guide me to where this may be found?GRG — 03:00 PM
54C Complete Teardown/Rebuild
I don't think that I have encountered a 12Z3 before, curious how it uses one of those but includes a #43, which is a 25 ...Arran — 02:17 PM
HiFi (Chifi) tube amp build - but my own design.
It's the other forum. I'm also in DIY, but mostly read there. Honestly, I kinda jumped into this without much thought to...TV MAN — 10:43 AM
Philco 71 Code 125
Hello,  I am in need of a schematic for this radio. Mine has the three separate circular tube shields and a shadow me...dconant — 08:06 AM
Stromberg Carlson 1500 Squeal
And life just keeps getting more complicated.dconant — 07:57 AM

[-]
Who's Online
There are currently 1691 online users. [Complete List]
» 1 Member(s) | 1690 Guest(s)
Avatar

>