No HFO, Mopar 802 / Philco C-4608

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

Thread Closed

Linear Mode

No HFO, Mopar 802 / Philco C-4608

Doug Houston
Silent Key

Posts: 337
Threads: 15
Joined: Nov 2005
City: Ortonville, MI

02-09-2011, 12:39 AM

If I remember correckutly, V1 should be the RF stage, and a 7A7. The oscillator-mixer is the 7B8, which couldn't be swapped with a 7A7. It might be well to try another 7B8, and it may cure the problem. But I wonder if possibly a mica cap in the oscillator circuit might have gone bad. My own experience with those sets has been that there is rarely a problem with the oscillator.

I can go to my books and see what the circuit is. The set is the same from 1941 through 1948.

Find

« Next Oldest | Next Newest »

Thread Closed

Messages In This Thread

No HFO, Mopar 802 / Philco C-4608 - by Ed9000 - 02-07-2011, 03:41 AM

Re: No HFO, Mopar 802 / Philco C-4608 - by Doug Houston - 02-09-2011, 12:39 AM

View a Printable Version

Users browsing this thread: 1 Guest(s)

Recent Posts
Stromberg Carlson 1500 Squeal
And life just keeps getting more complicated. By dconant. Dittos'Jimradio — 08:01 AM
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

Who's Online

There are currently 1624 online users. [Complete List]
» 1 Member(s) | 1623 Guest(s)

Login
Username:
Password:	Lost Password?
	Remember me