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

Thread Closed
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

AK808A
#3

Arran

The resistors the same type as Philcos from 20/70/90, with metal (tin-led) ends barrel-shaped ending with cones.
The color code is likely proprietary or at least it is not your "Bad boys...." thing as "Red+Blue" means 100K, "Red+Yellow" - 250K, "Blue+Grey" - 1M etc.


there are 4 flex resistors under the chassis and also some under RF chassis.
One (670 Ohm) is missing and replaced with a wire (green cloth covered), and one (2kOhm) is replaced with a regular longish carbon resistor (which is well within specs) and tied to a different physical spot on the same signal, plus some other things like a broken solder lug on the band switch nearby where the resistors are soldered to, from which I make an assumption it was at some point repaired. The remaining flexes are dead on, probably wire-wound.
Some old carbon ones are remarkably close to the nominal value.



Here is a question I have:

(the link is here)

http://www.nostalgiaair.org/PagesByModel...001472.pdf

Does anyone know if the C6 quad capacitor is paper or mica? It looks like a paper (a large block of four caps) but the values and the place it is used imply possible mica type.
I am not sure this will be changed (this is oscillator circuit grid feedback so it is low volts, no problems with possible shorting) and the values seem to be not too far from the nominal, but would like to know for my own peace of mind.


Messages In This Thread
AK808A - by morzh - 10-29-2014, 08:57 PM
RE: AK808A - by Arran - 10-30-2014, 12:36 AM
RE: AK808A - by morzh - 10-30-2014, 11:20 AM
RE: AK808A - by fields 100 - 10-30-2014, 06:13 PM
RE: AK808A - by morzh - 10-30-2014, 07:24 PM
RE: AK808A - by fields 100 - 10-30-2014, 08:00 PM
RE: AK808A - by morzh - 10-30-2014, 10:42 PM
RE: AK808A - by fields 100 - 10-31-2014, 08:27 AM
RE: AK808A - by thirtiesradio - 10-31-2014, 10:39 PM
RE: AK808A - by fields 100 - 10-31-2014, 11:25 PM
RE: AK808A - by Arran - 11-01-2014, 04:29 AM
RE: AK808A - by thirtiesradio - 11-01-2014, 09:39 PM
RE: AK808A - by fields 100 - 11-01-2014, 06:22 AM
RE: AK808A - by thirtiesradio - 11-01-2014, 09:35 PM
RE: AK808A - by Arran - 11-02-2014, 12:30 AM
RE: AK808A - by thirtiesradio - 11-02-2014, 03:08 AM
RE: AK808A - by morzh - 11-02-2014, 04:02 PM
RE: AK808A - by morzh - 11-03-2014, 10:48 PM
RE: AK808A - by morzh - 11-05-2014, 11:55 PM
RE: AK808A - by thirtiesradio - 11-06-2014, 01:51 AM
RE: AK808A - by fields 100 - 11-06-2014, 07:23 AM
RE: AK808A - by morzh - 11-06-2014, 02:41 PM
RE: AK808A - by fields 100 - 11-06-2014, 08:12 PM
RE: AK808A - by Arran - 11-06-2014, 11:49 PM
RE: AK808A - by thirtiesradio - 11-07-2014, 01:15 AM
RE: AK808A - by morzh - 11-07-2014, 12:34 AM
RE: AK808A - by Arran - 11-07-2014, 02:31 AM
RE: AK808A - by Phlogiston - 11-07-2014, 03:12 AM
RE: AK808A - by morzh - 11-07-2014, 10:55 AM
RE: AK808A - by thirtiesradio - 11-07-2014, 05:58 PM
RE: AK808A - by thirtiesradio - 11-07-2014, 09:27 PM
RE: AK808A - by morzh - 11-07-2014, 09:39 PM
RE: AK808A - by morzh - 11-07-2014, 09:40 PM
RE: AK808A - by morzh - 11-09-2014, 08:58 PM
RE: AK808A - by morzh - 11-09-2014, 09:03 PM
RE: AK808A - by Arran - 11-11-2014, 05:56 AM
RE: AK808A - by morzh - 11-11-2014, 09:27 PM
RE: AK808A - by morzh - 11-13-2014, 10:40 PM
RE: AK808A - by morzh - 12-06-2014, 08:26 PM
RE: AK808A - by morzh - 12-06-2014, 10:51 PM
RE: AK808A - by morzh - 12-07-2014, 12:36 AM
RE: AK808A - by sam - 12-07-2014, 03:33 AM
RE: AK808A - by Radioroslyn - 12-07-2014, 03:50 AM
RE: AK808A - by morzh - 12-07-2014, 10:25 AM
RE: AK808A - by Radioroslyn - 12-07-2014, 10:33 AM
RE: AK808A - by morzh - 12-07-2014, 11:26 AM
RE: AK808A - by morzh - 12-07-2014, 11:33 AM
RE: AK808A - by Eliot Ness - 12-07-2014, 11:57 AM
RE: AK808A - by morzh - 12-07-2014, 12:05 PM
RE: AK808A - by morzh - 12-07-2014, 01:10 PM
RE: AK808A - by AI2V - 12-10-2014, 09:58 PM
RE: AK808A - by morzh - 12-10-2014, 11:33 PM
RE: AK808A - by thirtiesradio - 12-12-2014, 11:13 AM
RE: AK808A - by morzh - 12-12-2014, 02:44 PM
RE: AK808A - by thirtiesradio - 12-12-2014, 04:35 PM
RE: AK808A - by morzh - 12-12-2014, 05:09 PM
RE: AK808A - by thirtiesradio - 12-12-2014, 05:33 PM
RE: AK808A - by morzh - 12-14-2014, 10:38 PM
RE: AK808A - by morzh - 12-19-2014, 10:08 PM
RE: AK808A - by sam - 12-19-2014, 11:01 PM
RE: AK808A - by Arran - 12-20-2014, 02:42 AM
RE: AK808A - by morzh - 12-19-2014, 11:35 PM
RE: AK808A - by sam - 12-19-2014, 11:48 PM
RE: AK808A - by morzh - 12-20-2014, 12:39 AM



Users browsing this thread: 15 Guest(s)
[-]
Recent Posts
An attempt to remove the Field Coil from a G speaker
Gary I in fact did, on a 38-14, I think, where I had a speaker with the dead coil. Well...it kinda worked. Kinda, be...morzh — 10:38 PM
An attempt to remove the Field Coil from a G speaker
Mike, what ever happened to that plan you had to try using a rare earth magnet to magnetize the pole? This looks like a...GarySP — 10:25 PM
RCA T62 is playing.....
Beautiful set.morzh — 09:07 PM
An attempt to remove the Field Coil from a G speaker
Well....here it is. The green stuff. Unfortunately, probably penetrates deep. I opened the top layer and saw that: ...morzh — 08:58 PM
Philco 91 Restore Code ??
:clap: :clap: :clap: :clap: Really nice workmanship!!! Top of the chassis looks great. Sorry about the long winded e...MrFixr55 — 08:09 PM
Philco 40-120C Restoration
Thank you for your reply. I will check voltages on the other tubes, look at resistor 23 and cap 25, etc. If all else fai...bluecap — 07:58 PM
RCA T62 is playing.....
Nice looking set great save. DavidDavid — 07:48 PM
Philco 89 indicator light.
Hello Jim, I have done several 89s. The trick is to move the drum in or out on it's shaft. You will need to loosen a set...dconant — 07:36 PM
An attempt to remove the Field Coil from a G speaker
MrFixr Yes, it is my plan to go with 45rpm spider if I go that far. No, the pole was not left-handed as I unscrewed ...morzh — 07:14 PM
Philco 40-120C Restoration
Change the tube. Check the tube's bias network. Are any other tubes experience the drop or just this?` Is resistor 23 OK...morzh — 07:09 PM

[-]
Who's Online
There are currently no members online.

>