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

Thread Closed

Kirk's Sparton 65
#18

Changed a few resistors. Some factory that do not agree with the sch, I left them, but those 500K that show 800K I replaced. One of them was AVC.
One was the detector amp load, after which the gain went up, now much louder.
But: though the speech is fine, the music is distorted, though it is only on the local station that is very strong, and others do not play any music.

I tried a different speaker, and changed every single tube, no change.

Replaced the diode with the 8.2uF cap after I lost the 43 tube and I only had one left, so I decided, it is cleaner and the tubes are not stressed anymore.

Plenty of stations on the BC, just one on the SW, but then thd antenna is short and it's not the night yet.
If the music keeps doing that (and it seems all is good electrically) I'll just leave it be.

I'll align it one more time, see if there's any change, though it seems the trimmers that dud not do anything still don't. Strange as the 456Khz seems go through well. Bad trimmers? Could be.....

People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.


Messages In This Thread
Kirk's Sparton 65 - by morzh - 08-29-2017, 08:26 AM
RE: Kirk's Sparton 65 - by OldRestorer - 08-29-2017, 10:15 AM
RE: Kirk's Sparton 65 - by Eliot Ness - 08-29-2017, 10:43 AM
RE: Kirk's Sparton 65 - by Radioroslyn - 08-29-2017, 11:31 AM
RE: Kirk's Sparton 65 - by morzh - 08-29-2017, 01:15 PM
RE: Kirk's Sparton 65 - by morzh - 08-29-2017, 01:15 PM
RE: Kirk's Sparton 65 - by morzh - 08-29-2017, 08:25 PM
RE: Kirk's Sparton 65 - by OldRestorer - 08-29-2017, 09:08 PM
RE: Kirk's Sparton 65 - by morzh - 08-29-2017, 09:35 PM
RE: Kirk's Sparton 65 - by Kenneth F. Besso Jr. - 08-30-2017, 07:16 PM
RE: Kirk's Sparton 65 - by OldRestorer - 08-30-2017, 07:16 PM
RE: Kirk's Sparton 65 - by Arran - 08-30-2017, 07:28 PM
RE: Kirk's Sparton 65 - by morzh - 08-30-2017, 08:54 PM
RE: Kirk's Sparton 65 - by OldRestorer - 08-31-2017, 07:08 AM
RE: Kirk's Sparton 65 - by morzh - 08-31-2017, 08:33 AM
RE: Kirk's Sparton 65 - by sam - 08-31-2017, 11:17 AM
RE: Kirk's Sparton 65 - by morzh - 08-31-2017, 11:38 AM
RE: Kirk's Sparton 65 - by morzh - 08-31-2017, 09:09 PM
RE: Kirk's Sparton 65 - by OldRestorer - 08-31-2017, 09:26 PM
RE: Kirk's Sparton 65 - by morzh - 08-31-2017, 09:46 PM
RE: Kirk's Sparton 65 - by sam - 08-31-2017, 11:13 PM
RE: Kirk's Sparton 65 - by OldRestorer - 08-31-2017, 11:23 PM
RE: Kirk's Sparton 65 - by morzh - 09-01-2017, 08:40 AM
RE: Kirk's Sparton 65 - by OldRestorer - 09-01-2017, 10:43 AM
RE: Kirk's Sparton 65 - by morzh - 09-01-2017, 11:08 AM
RE: Kirk's Sparton 65 - by OldRestorer - 09-01-2017, 01:47 PM
RE: Kirk's Sparton 65 - by morzh - 09-01-2017, 01:56 PM
RE: Kirk's Sparton 65 - by Arran - 09-02-2017, 12:09 AM
RE: Kirk's Sparton 65 - by morzh - 09-02-2017, 08:45 AM
RE: Kirk's Sparton 65 - by Arran - 09-03-2017, 03:27 AM
RE: Kirk's Sparton 65 - by morzh - 09-05-2017, 08:30 PM
RE: Kirk's Sparton 65 - by Radioroslyn - 09-05-2017, 11:29 PM
RE: Kirk's Sparton 65 - by morzh - 09-06-2017, 07:34 PM
RE: Kirk's Sparton 65 - by sam - 09-06-2017, 08:06 PM
RE: Kirk's Sparton 65 - by morzh - 09-06-2017, 08:12 PM
RE: Kirk's Sparton 65 - by Arran - 09-07-2017, 01:17 AM
RE: Kirk's Sparton 65 - by morzh - 09-07-2017, 08:13 AM
RE: Kirk's Sparton 65 - by OldRestorer - 09-07-2017, 12:58 PM
RE: Kirk's Sparton 65 - by morzh - 09-07-2017, 01:35 PM
RE: Kirk's Sparton 65 - by OldRestorer - 09-07-2017, 03:54 PM
RE: Kirk's Sparton 65 - by morzh - 09-07-2017, 04:10 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
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
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

[-]
Who's Online
There are currently 1574 online users. [Complete List]
» 1 Member(s) | 1573 Guest(s)
Avatar

>