HH Scott LK72B Amplifier

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

HH Scott LK72B Amplifier

rfeenstra
Phorum Expert

Posts: 1,199
Threads: 49
Joined: Oct 2017
City: Allendale, MI

#39

12-14-2019, 01:05 AM

Well Crap!!! I was watching Buzz's video on a Philco 45 when a buzzzzz started in my audio. I thought it was a Buzz problem till till I looked over at my Scott amp and saw one of the 7591's quite red inside. So my buzz was not Buzz but my buzzing Scott output. Quickly turned it off. More work to do. I've left this thing on overnight many a time (I am over 65 so I forget to turn it off). I'm glad it happened while I was watching Buzz. I'll blame Buzz for my buzz. Don't know if it's a tube or the bias supply. I think now is the time to instal the "IBAM" bias upgrade that you Fisher guys are using!

Find

« Next Oldest | Next Newest »

Thread Closed

Messages In This Thread

HH Scott LK72B Amplifier - by rfeenstra - 03-25-2018, 06:00 PM

RE: HH Scott LK72B Amplifier - by Phlogiston - 03-25-2018, 08:59 PM

RE: HH Scott LK72B Amplifier - by rfeenstra - 03-25-2018, 10:51 PM

RE: HH Scott LK72B Amplifier - by morzh - 03-25-2018, 11:27 PM

RE: HH Scott LK72B Amplifier - by rfeenstra - 03-31-2018, 11:18 PM

RE: HH Scott LK72B Amplifier - by morzh - 04-01-2018, 09:59 AM

RE: HH Scott LK72B Amplifier - by rfeenstra - 04-01-2018, 05:25 PM

RE: HH Scott LK72B Amplifier - by Electrothaumaturgist - 04-01-2018, 06:58 PM

RE: HH Scott LK72B Amplifier - by morzh - 04-01-2018, 09:04 PM

RE: HH Scott LK72B Amplifier - by rfeenstra - 04-05-2018, 08:55 PM

RE: HH Scott LK72B Amplifier - by rfeenstra - 04-05-2018, 10:20 PM

RE: HH Scott LK72B Amplifier - by Phlogiston - 04-06-2018, 11:16 AM

RE: HH Scott LK72B Amplifier - by rfeenstra - 04-06-2018, 01:20 PM

RE: HH Scott LK72B Amplifier - by rfeenstra - 04-07-2018, 03:23 PM

RE: HH Scott LK72B Amplifier - by codefox1 - 04-30-2018, 09:44 PM

RE: HH Scott LK72B Amplifier - by Phlogiston - 04-30-2018, 10:22 PM

RE: HH Scott LK72B Amplifier - by rfeenstra - 05-01-2018, 12:18 AM

RE: HH Scott LK72B Amplifier - by morzh - 05-01-2018, 11:51 AM

RE: HH Scott LK72B Amplifier - by Phlogiston - 05-01-2018, 12:23 PM

RE: HH Scott LK72B Amplifier - by rfeenstra - 05-01-2018, 04:51 PM

RE: HH Scott LK72B Amplifier - by Phlogiston - 05-01-2018, 10:34 PM

RE: HH Scott LK72B Amplifier - by rfeenstra - 05-02-2018, 12:06 AM

RE: HH Scott LK72B Amplifier - by morzh - 05-02-2018, 08:23 AM

RE: HH Scott LK72B Amplifier - by rfeenstra - 05-02-2018, 08:55 AM

RE: HH Scott LK72B Amplifier - by Ron Ramirez - 05-02-2018, 09:45 AM

RE: HH Scott LK72B Amplifier - by morzh - 05-02-2018, 09:47 AM

RE: HH Scott LK72B Amplifier - by Phlogiston - 05-02-2018, 10:38 AM

RE: HH Scott LK72B Amplifier - by rfeenstra - 05-02-2018, 06:10 PM

RE: HH Scott LK72B Amplifier - by rfeenstra - 05-19-2018, 11:32 PM

RE: HH Scott LK72B Amplifier - by Phlogiston - 05-20-2018, 11:00 AM

RE: HH Scott LK72B Amplifier - by rfeenstra - 05-20-2018, 12:58 PM

RE: HH Scott LK72B Amplifier - by rfeenstra - 05-20-2018, 01:19 PM

RE: HH Scott LK72B Amplifier - by morzh - 05-20-2018, 02:18 PM

RE: HH Scott LK72B Amplifier - by rfeenstra - 05-20-2018, 02:34 PM

RE: HH Scott LK72B Amplifier - by KCMike - 05-20-2018, 03:01 PM

RE: HH Scott LK72B Amplifier - by Phlogiston - 05-20-2018, 03:27 PM

RE: HH Scott LK72B Amplifier - by TV MAN - 05-22-2018, 07:54 AM

RE: HH Scott LK72B Amplifier - by rfeenstra - 05-22-2018, 09:08 AM

RE: HH Scott LK72B Amplifier - by rfeenstra - 12-14-2019, 01:05 AM

RE: HH Scott LK72B Amplifier - by rfeenstra - 12-14-2019, 01:12 AM

RE: HH Scott LK72B Amplifier - by rfeenstra - 12-14-2019, 01:58 AM

RE: HH Scott LK72B Amplifier - by Phlogiston - 12-14-2019, 09:20 PM

RE: HH Scott LK72B Amplifier - by rfeenstra - 12-14-2019, 09:33 PM

RE: HH Scott LK72B Amplifier - by rfeenstra - 12-14-2019, 10:49 PM

RE: HH Scott LK72B Amplifier - by Phlogiston - 12-14-2019, 11:17 PM

RE: HH Scott LK72B Amplifier - by rfeenstra - 12-14-2019, 11:47 PM

RE: HH Scott LK72B Amplifier - by rfeenstra - 04-23-2020, 11:32 PM

RE: HH Scott LK72B Amplifier - by PhilcoJohn - 04-26-2020, 05:57 PM

RE: HH Scott LK72B Amplifier - by rfeenstra - 04-26-2020, 11:36 PM

RE: HH Scott LK72B Amplifier - by morzh - 04-26-2020, 11:48 PM

RE: HH Scott LK72B Amplifier - by rfeenstra - 04-27-2020, 01:37 AM

RE: HH Scott LK72B Amplifier - by MrFixr55 - 08-14-2022, 08:04 AM

RE: HH Scott LK72B Amplifier - by RGK20m3 - 08-15-2022, 07:17 AM

RE: HH Scott LK72B Amplifier - by rfeenstra - 08-15-2022, 10:13 AM

View a Printable Version

Users browsing this thread: 1 Guest(s)

Recent Posts
Philco 42-345 Restoration/Repair
Yes, 57 is an electrolytic cap that should be 12 mfd 400 volts according to the parts list from the Phorum library schem...RodB — 06:01 PM
Philco 42-345 Restoration/Repair
Looks like if I am reading it correctly it looks like the silver capacitor#57 that appears to be a replacement is of a l...osanders0311 — 05:09 PM
Philco model 38 code 121 not receiving signal.
Thanks Arran. Yeah this plastic is pretty thin. It's a little thinner than the original stuff. It kinda reminds me of p...Stormlord5500 — 04:37 PM
Testing a speaker and output transformer Trutone A2-G
The equivalent of one short turn is basically the same as that of a shorted load. If it is the primary's turn, then the ...morzh — 03:53 PM
Testing a speaker and output transformer Trutone A2-G
I've never had an output transformer become shorted, the failure mode is usually an open primary, or in a center tapped ...Arran — 03:52 PM
Philco model 38 code 121 not receiving signal.
As long as the plastic sheeting isn't too thick, I think that the thickness of photographic film would be just about rig...Arran — 03:19 PM
Philco model 38 code 121 not receiving signal.
Well why not! :lol:Stormlord5500 — 03:14 PM
Philco model 38 code 121 not receiving signal.
Good luck next thing you know you will be winding coils just for the fun of it. DavidDavid — 11:29 AM
Testing a speaker and output transformer Trutone A2-G
morzh Short-circuited turns can be considered as a half-dead transformer. But on this case transformer will hot and s...Vlad95 — 11:01 AM
Testing a speaker and output transformer Trutone A2-G
I am not sure how a transformer could be weak. It could be inadequate, but only when you replace the original with somet...morzh — 09:56 AM

Who's Online

There are currently 2146 online users. [Complete List]
» 2 Member(s) | 2144 Guest(s)

Login
Username:
Password:	Lost Password?
	Remember me