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

Thread Closed

AK808A
#50

Another piece of good news, the shadograph works. It does have a resistor in parallel inside it, but 1K kinda gave me hope the coil was intact.
I had to swap the lights places, the dial one was very bright whereas the shaograph was on the dim side, so after that the shadograph became really crisp, just had to adjust the lamp hoder position.

The sensitivity is so far so-so which might be due to antenna absense, or Avc Voltage not developed proprely, will look at it.

I also thought of magnet being weak but then in the beginning it forms very thin line, and then goes almost full width, after which it settles in the middle and does react to tuning but not as much as I'd like, this is why I think the magnet is fine.

My bet is on antenna as the 2nd detector (I have yet to see where it goes to the meter but has to be it) tube is very strong.


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: 2 Guest(s)
[-]
Recent Posts
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
54C Complete Teardown/Rebuild
Hello Roy, here is this one sincerely Richardradiorich — 12:45 AM
54C Complete Teardown/Rebuild
Richard, Had grabbed it already but thank you just the same.  I find myself wanting to find some way to block out the...glyphmon — 12:03 AM
54C Complete Teardown/Rebuild
Hello roy, here is a link to the schematic . Sincerely Richardradiorich — 11:54 PM
54C Complete Teardown/Rebuild
Richard, The Silvertone 2014 also is a transformerless set, so I am incorporating a 1:1 600 ohm audio isolation transfo...glyphmon — 11:37 PM
Preliminary work on wife's Silvertone 2014
Did an alignment today which was interesting.  IF alignment went great, almost all was already spot-on.  Adjusting on th...glyphmon — 11:35 PM
54C Complete Teardown/Rebuild
The main problem with adding a Bluetooth input is that this set lacks a traditional power transformer to isolate it from...radiorich — 11:19 PM
54C Cabinet Refinish
I started stripping this cabinet before it got super chilly out because I knew I wasn't going to be able to work on ...glyphmon — 11:18 PM

[-]
Who's Online
There are currently 1729 online users. [Complete List]
» 2 Member(s) | 1727 Guest(s)
AvatarAvatar

>