Recapped My Predicta Tandem, I don't know what to do
Posts: 811
Threads: 43
Joined: Dec 2008
City: Chicago, IL
That "freewheel" coil helps keep the oscillator on target, but it isn't the only factor. If the RC components of the multivibrator are way off, I'm not sure the coil can compensate.
Messages In This Thread
RE: Recapped My Predicta Tandem, I don't know what to do - by Bob Andersen - 01-09-2022, 12:42 AM
Users browsing this thread: 2 Guest(s)
|
Recent Posts
|
Zenith H725
|
The PSU filter cap arrived today (thank you USPS!) so I will work on that later.
Meanwhile, I have the dial, speaker...EdHolland — 06:42 PM |
Philco 610B oscillator wiring
|
Thanks Terry. After checking my notes I think I recorded about -10v at the 6A7 G4/control grid. The screen grid (G3 &...Tubester — 05:59 PM |
The list of my radio & TV collection!
|
Magical chords of forgotten melodies, old nostalgic music on an old radio... Saturday night blues on the Mid-Waves on an...RadioSvit — 12:20 PM |
Philco 42-345 Restoration/Repair
|
Thank you MrFixr55 the issue with this radio is that the internal coil antenna is missing and there was a wire in its pl...osanders0311 — 11:34 AM |
Philco 610B oscillator wiring
|
Regarding the oscillator circuit which is comprised of the 6A7's cathode, control grid, and screen grid. These elements ...Radioroslyn — 10:33 AM |
Philco 42-345 Restoration/Repair
|
Hi OSanders,
First off, welcome to the Philco Phorum where Phine Phamily-Phriendly Pholks Phull of Philco Phacts and P...MrFixr55 — 08:41 AM |
Philco 42-345 Restoration/Repair
|
Today I've been reading through the site trying to learn more about this radio. I also soldered the lose power cord cabl...osanders0311 — 08:24 PM |
Philco 610B oscillator wiring
|
Thanks David! I do have that same later prodution model 610 schematic. I've also studied the Philco service bulletins fo...Tubester — 08:12 PM |
Philco 610B oscillator wiring
|
Some info from Beitmans says late production. David David — 06:06 PM |
Restoring Philco 96
|
Oh wow! Just found this thread. Brings me back to early days on this phorum. I did a 96 back in 2017. Thread here:
...rfeenstra — 06:05 PM |
Who's Online
|
There are currently no members online. |
|

|