1. The PHILCO Phorum
  2. Various and Sundry Categories
  3. Other Radios (Non-Philco)
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

Linear Mode
AS4 Hobbyists Radio
RodB
Phorum Expert
*****
Posts: 997
Threads: 40
Joined: Feb 2015
City: Roseville, MN
#3

12-24-2020, 06:27 PM
You might want to lower the screen voltage of V1 and V2. Use a screen grid resistor off B+ and feed the voltage to the two grids. This will result in less screen grid current with little effect on output. Maybe extend the life of the tube.
Find
« Next Oldest | Next Newest »


Messages In This Thread
AS4 Hobbyists Radio - by Daniel Bingamon - 12-24-2020, 04:18 PM
RE: AS4 Hobbyists Radio - by Daniel Bingamon - 12-24-2020, 04:19 PM
RE: AS4 Hobbyists Radio - by RodB - 12-24-2020, 06:27 PM
RE: AS4 Hobbyists Radio - by Daniel Bingamon - 12-24-2020, 07:48 PM
RE: AS4 Hobbyists Radio - by Radioroslyn - 12-24-2020, 09:22 PM
RE: AS4 Hobbyists Radio - by vinzer - 12-24-2020, 09:28 PM
RE: AS4 Hobbyists Radio - by Daniel Bingamon - 12-30-2020, 11:24 PM
RE: AS4 Hobbyists Radio - by Arran - 12-31-2020, 04:48 AM
RE: AS4 Hobbyists Radio - by Daniel Bingamon - 01-15-2021, 08:37 PM
RE: AS4 Hobbyists Radio - by Daniel Bingamon - 01-17-2021, 05:12 PM
RE: AS4 Hobbyists Radio - by Daniel Bingamon - 01-24-2021, 03:49 PM
RE: AS4 Hobbyists Radio - by Daniel Bingamon - 05-16-2021, 10:50 AM
RE: AS4 Hobbyists Radio - by OZ4 - 05-16-2021, 01:21 PM
RE: AS4 Hobbyists Radio - by Daniel Bingamon - 09-19-2021, 01:48 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
American Bosch Model 802 auto radio
Hello again;   I found a model 838 car radio on Nostalgia Air under United American Bosch, http://www.nostalgiaair.org/...Arran — 09:32 PM
New Philco Repair Bench
Morzh is correct. The repair bench on our website is an archived image of chuck’s original site. He no longer provides s...klondike98 — 05:32 PM
Made mistake & did not label connection
Excellent information. It is all starting to come together now and your explanation really helped since I noticed that ...georgetownjohn — 04:39 PM
Made mistake & did not label connection
Hi John, I don't have this radio, but I can supply some info: Based on your pic, pins 7,8 and 1 are used together, go...MrFixr55 — 02:02 PM
New Philco Repair Bench
As far as I know, the Repairbench does not work, and has not been working in a while. Chuck (we had that campaign looki...morzh — 01:33 PM
Radio city products 664 schematic request
Need a schematic or manual for the 664. The 663 may be similar.daveone23 — 12:38 PM
New Philco Repair Bench
Thanks Gary.dconant — 12:16 PM
New Philco Repair Bench
I tried accessing the site through our library and got the same response. It's reported to our tech gurus. GaryGarySP — 11:50 AM
New Philco Repair Bench
I am sure this is the archive, and not the Chuck's site.morzh — 09:50 PM
Made mistake & did not label connection
It's not like we are good friends with that wire and can tell it from other ptetty identical looking wires. Why'n't you...morzh — 09:49 PM

[-]
Who's Online
There are currently 3920 online users. [Complete List]
» 1 Member(s) | 3919 Guest(s)
Avatar

>
  1. The PHILCO Phorum
  2. Various and Sundry Categories
  3. Other Radios (Non-Philco)