Fisher 500c rebuild

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

Linear Mode

Fisher 500c rebuild

Arran
Phorum Expert

Posts: 4,861
Threads: 54
Joined: Sep 2008
City: Sandwick, BC, CA

#24

02-11-2018, 03:29 AM

All in all I can't understand the appeal that these 500Cs, and many of these other tubed Fisher tuner-amplifiers seem to have, it sounds like the amplifier circuitry of these 500Cs is of a very poor design, it sort of reminds me of that Croften-White amp circuit that was tried back in the early 30s where you had to have both tubes in the circuit in perfect condition or bad things would happen. I've never really understood why anyone would build and market an amp with tubes driven to the maximum operating limits, other then just for bragging rights in marketing, something goes slightly wrong and it's meltdown time.
Regards
Arran

Find

« Next Oldest | Next Newest »

Thread Closed

Messages In This Thread

Fisher 500c rebuild - by TV MAN - 01-29-2018, 05:35 PM

RE: Fisher 500c rebuild - by Ron Ramirez - 01-29-2018, 07:53 PM

RE: Fisher 500c rebuild - by Arran - 01-30-2018, 03:41 AM

RE: Fisher 500c rebuild - by Ron Ramirez - 01-30-2018, 07:05 AM

RE: Fisher 500c rebuild - by TV MAN - 02-01-2018, 03:56 PM

RE: Fisher 500c rebuild - by Ron Ramirez - 02-01-2018, 04:27 PM

RE: Fisher 500c rebuild - by TV MAN - 02-01-2018, 05:28 PM

RE: Fisher 500c rebuild - by Ron Ramirez - 02-01-2018, 07:15 PM

RE: Fisher 500c rebuild - by TV MAN - 02-02-2018, 09:08 PM

RE: Fisher 500c rebuild - by Ron Ramirez - 02-02-2018, 11:12 PM

RE: Fisher 500c rebuild - by Arran - 02-03-2018, 05:15 AM

RE: Fisher 500c rebuild - by Ron Ramirez - 02-03-2018, 10:04 AM

RE: Fisher 500c rebuild - by TV MAN - 02-03-2018, 11:28 AM

RE: Fisher 500c rebuild - by Ron Ramirez - 02-03-2018, 08:01 PM

RE: Fisher 500c rebuild - by Ron Ramirez - 02-03-2018, 08:14 PM

RE: Fisher 500c rebuild - by Arran - 02-05-2018, 04:06 AM

RE: Fisher 500c rebuild - by TV MAN - 02-05-2018, 11:29 PM

RE: Fisher 500c rebuild - by Ron Ramirez - 02-07-2018, 12:53 PM

RE: Fisher 500c rebuild - by Ron Ramirez - 02-07-2018, 01:46 PM

RE: Fisher 500c rebuild - by Arran - 02-09-2018, 04:09 AM

RE: Fisher 500c rebuild - by Ron Ramirez - 02-09-2018, 07:22 AM

RE: Fisher 500c rebuild - by TV MAN - 02-10-2018, 01:34 PM

RE: Fisher 500c rebuild - by Ron Ramirez - 02-10-2018, 07:30 PM

RE: Fisher 500c rebuild - by Arran - 02-11-2018, 03:29 AM

RE: Fisher 500c rebuild - by Phlogiston - 02-11-2018, 01:20 PM

RE: Fisher 500c rebuild - by Phlogiston - 02-11-2018, 01:39 PM

RE: Fisher 500c rebuild - by Arran - 02-12-2018, 03:04 AM

RE: Fisher 500c rebuild - by Ron Ramirez - 02-12-2018, 07:28 AM

RE: Fisher 500c rebuild - by TV MAN - 02-15-2018, 02:18 PM

RE: Fisher 500c rebuild - by TV MAN - 03-01-2018, 11:35 PM

RE: Fisher 500c rebuild - by Ron Ramirez - 03-02-2018, 07:20 AM

RE: Fisher 500c rebuild - by morzh - 03-02-2018, 10:53 AM

RE: Fisher 500c rebuild - by Phlogiston - 03-02-2018, 01:06 PM

RE: Fisher 500c rebuild - by Ron Ramirez - 03-02-2018, 04:01 PM

RE: Fisher 500c rebuild - by TV MAN - 03-10-2018, 11:13 AM

RE: Fisher 500c rebuild - by Ron Ramirez - 03-11-2018, 12:36 AM

RE: Fisher 500c rebuild - by TV MAN - 03-21-2018, 10:23 PM

RE: Fisher 500c rebuild - by Ron Ramirez - 03-22-2018, 06:14 AM

RE: Fisher 500c rebuild - by TV MAN - 03-22-2018, 06:36 PM

RE: Fisher 500c rebuild - by TV MAN - 04-07-2018, 12:25 PM

RE: Fisher 500c rebuild - by Ron Ramirez - 04-11-2018, 10:15 AM

View a Printable Version

Users browsing this thread: 1 Guest(s)

Recent Posts
Need to purchase some accessories for restoration of my Old Philco Radio
Here is a list of resources found in our online library that you might find useful. Mike's Gobs of Knobs email addres...klondike98 — 01:46 PM
First Radio restoration
Hi Tubeman, Welcome to the Philco Phorum. Phamily Phriendly Pfun with Phine Pholks Phull of Philco Phacts. (See a p...MrFixr55 — 12:33 PM
First Radio restoration
You could post in the WANTED ADs section here on the Phorum and see if anyone has an RF generator that they want to sell...klondike98 — 11:55 AM
Zenith H725
Good ideas, thank you Arrange and Rich. I have the adhesive aluminum foil already and can try that immediately. More ...EdHolland — 10:18 AM
Graphics for majestic 1050 dial glass.
Murf; I found this thread on the ARF, the first photo has a pretty good view of the dial glass. Regards ArranArran — 01:12 AM
Zenith H725
hello Ed, how about that speacial tape used for ducting it's like foil or how about thin piece of aluminum roof flash...radiorich — 12:19 AM
Zenith H725
Ed; One material that I have seen, but never tried for this was material for making exhaust gaskets, it's similar to ...Arran — 11:42 PM
Zenith H725
I just remembered, I have some hi temp silicone rubber material which could do the trick. Or a piece of FR4 laminate. Th...EdHolland — 08:39 PM
Zenith H725
The PSU filter cap arrived today (thank you USPS!) so I will work on that later. Meanwhile, I have the dial, speaker...EdHolland — 06:42 PM
Philco 610B oscillator wiring
Thanks Terry. After checking my notes I think I recorded about -10v at the 6A7 G4/control grid. The screen grid (G3 &...Tubester — 05:59 PM

Who's Online

There are currently 1547 online users. [Complete List]
» 1 Member(s) | 1546 Guest(s)

Login
Username:
Password:	Lost Password?
	Remember me