Kirk's Sparton 65

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Kirk's Sparton 65

morzh
Odobenus rosmarus

Posts: 15,818
Threads: 554
Joined: Oct 2011
City: Jackson, NJ

#31

09-05-2017, 08:30 PM

I was about to give up. It was receving across dial after all. But yesterday scoping outthe distortion I thought was coming out of the detector, I realised whatever was there did not explain the output waveform from 43. I even changed the grid bias resistors that are supposed to be 300k and were 500k. I saw a sawtooth after the DC blocking cap from 75 to 43. So I noticed the two caps, the DC blocking and the shunt looked the same and the shunt was supposed to be 500pF and both caps were 4.7nF.
So I changed it, and....voila.... It plays really nice and really loud. The freaking shunt was killing everything.

The guy who recapped this radio made at least 3 screwups that made the radio not working properly.

About it.

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.

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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, 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

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