Fisher 500C restoration

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Fisher 500C restoration

EdHolland
Phorum Expert

Posts: 1,287
Threads: 44
Joined: Nov 2017
City: Menlo Park State, Province, Country: CA

#64

05-23-2019, 12:07 AM

Ordered parts to build an IBAM board today. Progress in a couple of weekends, as there won't be a chance this week.

Also, I've been thinking about FM alignment. No scope or proper FM generator here, but I do have an accurate signal generator. Here is my question - in adjusting the discriminator, can I check linearity by zeroing at 10.7 MHz, and then look at the DC voltages generated for equal shifts in frequency above and below this center point, out to the +/-75 kHz max?

Just a thought, as I have some odd issues with distortion and weird artifacts in the stereo reception - Especially on busy music with a lot of tonal range. With limited test equipment, and no opportunity to find and get this to a pro, and an overwhelming desire to over-think the process in order to have more fun, I want to explore the options Icon_smile

. Whatever the outcome, I can always get back to where I am now. Meanwhile, I'm learning more about multplex (And the Fisher MPX unit) and FM receivers in general.

Comments welcome!

Ed

I don't hold with furniture that talks.

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Messages In This Thread

Fisher 500C restoration - by EdHolland - 02-03-2019, 06:03 PM

RE: Fisher 500C restoration - by morzh - 02-03-2019, 06:11 PM

RE: Fisher 500C restoration - by Ron Ramirez - 02-03-2019, 06:50 PM

RE: Fisher 500C restoration - by EdHolland - 02-03-2019, 07:25 PM

RE: Fisher 500C restoration - by Ron Ramirez - 02-03-2019, 07:58 PM

RE: Fisher 500C restoration - by EdHolland - 02-04-2019, 09:07 PM

RE: Fisher 500C restoration - by EdHolland - 02-20-2019, 05:07 PM

RE: Fisher 500C restoration - by KCMike - 02-20-2019, 06:03 PM

RE: Fisher 500C restoration - by Ron Ramirez - 02-20-2019, 11:11 PM

RE: Fisher 500C restoration - by EdHolland - 02-21-2019, 03:10 PM

RE: Fisher 500C restoration - by EdHolland - 02-25-2019, 06:46 PM

RE: Fisher 500C restoration - by EdHolland - 03-01-2019, 05:02 PM

RE: Fisher 500C restoration - by EdHolland - 03-15-2019, 08:22 PM

RE: Fisher 500C restoration - by TV MAN - 03-16-2019, 09:20 AM

RE: Fisher 500C restoration - by EdHolland - 03-17-2019, 08:35 PM

RE: Fisher 500C restoration - by EdHolland - 03-18-2019, 10:29 PM

RE: Fisher 500C restoration - by EdHolland - 03-20-2019, 09:27 PM

RE: Fisher 500C restoration - by EdHolland - 03-21-2019, 03:23 PM

RE: Fisher 500C restoration - by EdHolland - 03-22-2019, 10:44 PM

RE: Fisher 500C restoration - by EdHolland - 03-22-2019, 11:12 PM

RE: Fisher 500C restoration - by morzh - 03-23-2019, 11:45 AM

RE: Fisher 500C restoration - by morzh - 03-23-2019, 03:40 PM

RE: Fisher 500C restoration - by EdHolland - 03-23-2019, 08:23 PM

RE: Fisher 500C restoration - by morzh - 03-23-2019, 08:29 PM

RE: Fisher 500C restoration - by Ron Ramirez - 03-23-2019, 10:20 PM

RE: Fisher 500C restoration - by EdHolland - 03-23-2019, 10:22 PM

RE: Fisher 500C restoration - by EdHolland - 03-23-2019, 11:09 PM

RE: Fisher 500C restoration - by morzh - 03-24-2019, 10:45 AM

RE: Fisher 500C restoration - by Phlogiston - 03-24-2019, 01:11 PM

RE: Fisher 500C restoration - by EdHolland - 03-24-2019, 02:15 PM

RE: Fisher 500C restoration - by morzh - 03-24-2019, 02:18 PM

RE: Fisher 500C restoration - by EdHolland - 03-24-2019, 10:56 PM

RE: Fisher 500C restoration - by morzh - 03-25-2019, 09:07 AM

RE: Fisher 500C restoration - by EdHolland - 03-27-2019, 01:20 PM

RE: Fisher 500C restoration - by EdHolland - 03-30-2019, 07:49 PM

RE: Fisher 500C restoration - by morzh - 03-31-2019, 10:51 AM

RE: Fisher 500C restoration - by EdHolland - 03-31-2019, 07:31 PM

RE: Fisher 500C restoration - by EdHolland - 03-31-2019, 09:59 PM

RE: Fisher 500C restoration - by morzh - 03-31-2019, 10:23 PM

RE: Fisher 500C restoration - by EdHolland - 03-31-2019, 10:55 PM

RE: Fisher 500C restoration - by morzh - 04-01-2019, 08:32 AM

RE: Fisher 500C restoration - by TV MAN - 04-02-2019, 11:38 AM

RE: Fisher 500C restoration - by Ron Ramirez - 04-02-2019, 12:30 PM

RE: Fisher 500C restoration - by EdHolland - 04-07-2019, 10:10 PM

RE: Fisher 500C restoration - by EdHolland - 04-14-2019, 10:04 PM

RE: Fisher 500C restoration - by Phlogiston - 04-15-2019, 11:41 AM

RE: Fisher 500C restoration - by EdHolland - 04-15-2019, 02:51 PM

RE: Fisher 500C restoration - by Phlogiston - 04-15-2019, 06:23 PM

RE: Fisher 500C restoration - by EdHolland - 04-21-2019, 02:36 AM

RE: Fisher 500C restoration - by EdHolland - 04-21-2019, 02:45 PM

RE: Fisher 500C restoration - by EdHolland - 04-21-2019, 09:44 PM

RE: Fisher 500C restoration - by EdHolland - 04-23-2019, 12:51 PM

RE: Fisher 500C restoration - by EdHolland - 04-25-2019, 03:57 PM

RE: Fisher 500C restoration - by EdHolland - 04-30-2019, 08:05 PM

RE: Fisher 500C restoration - by EdHolland - 05-05-2019, 05:35 PM

RE: Fisher 500C restoration - by EdHolland - 05-12-2019, 03:35 PM

RE: Fisher 500C restoration - by Ron Ramirez - 05-12-2019, 04:26 PM

RE: Fisher 500C restoration - by EdHolland - 05-12-2019, 07:15 PM

RE: Fisher 500C restoration - by EdHolland - 05-19-2019, 09:07 PM

RE: Fisher 500C restoration - by morzh - 05-20-2019, 02:37 PM

RE: Fisher 500C restoration - by EdHolland - 05-20-2019, 06:05 PM

RE: Fisher 500C restoration - by Ron Ramirez - 05-20-2019, 08:57 PM

RE: Fisher 500C restoration - by morzh - 05-21-2019, 12:22 PM

RE: Fisher 500C restoration - by EdHolland - 05-23-2019, 12:07 AM

RE: Fisher 500C restoration - by EdHolland - 05-23-2019, 01:30 AM

RE: Fisher 500C restoration - by EdHolland - 05-24-2019, 03:28 PM

RE: Fisher 500C restoration - by Ron Ramirez - 05-25-2019, 06:45 PM

RE: Fisher 500C restoration - by EdHolland - 05-25-2019, 09:44 PM

RE: Fisher 500C restoration - by EdHolland - 05-29-2019, 11:10 AM

RE: Fisher 500C restoration - by EdHolland - 05-30-2019, 10:42 AM

RE: Fisher 500C restoration - by EdHolland - 06-01-2019, 11:49 PM

RE: Fisher 500C restoration - by Ron Ramirez - 06-02-2019, 08:07 AM

RE: Fisher 500C restoration - by EdHolland - 06-02-2019, 11:09 PM

RE: Fisher 500C restoration - by EdHolland - 06-08-2019, 11:47 PM

RE: Fisher 500C restoration - by EdHolland - 06-10-2019, 04:04 PM

RE: Fisher 500C restoration - by EdHolland - 07-10-2019, 08:52 PM

RE: Fisher 500C restoration - by Ron Ramirez - 07-12-2019, 10:43 PM

RE: Fisher 500C restoration - by EdHolland - 07-14-2019, 11:02 PM

RE: Fisher 500C restoration - by EdHolland - 07-20-2019, 11:18 PM

RE: Fisher 500C restoration - by EdHolland - 07-24-2019, 01:51 AM

RE: Fisher 500C restoration - by gregb - 07-24-2019, 07:18 AM

RE: Fisher 500C restoration - by EdHolland - 07-24-2019, 05:48 PM

RE: Fisher 500C restoration - by rfeenstra - 07-24-2019, 06:24 PM

RE: Fisher 500C restoration - by EdHolland - 07-28-2019, 12:00 AM

RE: Fisher 500C restoration - by EdHolland - 07-28-2019, 11:08 PM

RE: Fisher 500C restoration - by morzh - 07-29-2019, 07:55 AM

RE: Fisher 500C restoration - by EdHolland - 07-31-2019, 11:43 AM

RE: Fisher 500C restoration - by Phlogiston - 07-31-2019, 12:21 PM

RE: Fisher 500C restoration - by EdHolland - 07-31-2019, 08:46 PM

RE: Fisher 500C restoration - by Joeztech - 08-02-2019, 07:47 AM

RE: Fisher 500C restoration - by Joeztech - 08-02-2019, 09:58 AM

RE: Fisher 500C restoration - by EdHolland - 08-04-2019, 04:31 PM

RE: Fisher 500C restoration - by Phlogiston - 08-05-2019, 12:01 AM

RE: Fisher 500C restoration - by EdHolland - 08-05-2019, 05:01 AM

RE: Fisher 500C restoration - by EdHolland - 08-26-2019, 12:09 AM

RE: Fisher 500C restoration - by doc_zap - 09-10-2019, 11:53 PM

RE: Fisher 500C restoration - by EdHolland - 09-11-2019, 12:24 PM

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