Grabbed This Scott 1964 340-B today for $125 Works Great
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Dswankey
Lunatic Member
JPNH
Active Member
Oh wow thanks! I just found the owners manual and have been reading through and a guy that makes cabinets so I may order one. I'm amazed how advanced it is for its time.
JPNH
Active Member
Thanks! The guy that listed it managed to spell "Scott" wrong so I'm guessing it didn't come up in searches. I found it by accident searching "tube" on FB Marketplace.
JPNH
Active Member
Oh cool thanks I'll check it out!
Nice find. I have had a couple of those that I sold, I have a few more now as well. They both need restored, but one I have done some work to, and while it works, the voltages are off and tube bias needs attention, as in replacement of components. When I first tested it, with a variac, one of the can capacitors blew up with smoke and noise after a few minutes, so that got replaced. Your amp needs rebuilt before it can really be used as it was designed, even if seller says it is working just fine.
JPNH
Active Member
Oh no argument there. As nice as it sounds I find small things like distortion when the bass is past a certain level, noise etc. Since I'm not traveling 15k miles a week anymore I'll try to get it on my bench soon. Just looking through the chassis all the insulation on the wires is dried up and cracked. And it still has a two prong cord. Found a good thread in the archives here: https://audiokarma.org/forums/index.php?threads/hh-scott-340b-parts-list-rehab.745564/page-4
Will probably replace all the tubes as I have NOS for every tube it uses in storage. They're all original and had never been replaced. Put a few in my Eico tester and they're at EOL.
Thx for the suggestion!
Destructor
Super Member
I have one of those that I've mostly restored, the same version too. They are very nice receivers.
No reason to use an external one...
JPNH
Active Member
Thanks! That's what I figured, but thought I would double check. Cheers!
arts
Addicted Member
I too have a 340B. Unused presently due to desperately needing a rebuild,it patiently sits in my "to do" pile. When it was running though,it was a most impressive machine. Tuner and amplifier sections were both excellent,and it had enough bottom-end grunt to effortlessly rock the shop. Any tube receiver that can push Humble Pie to those levels gets my vote
Seriously though,you should give due consideration to performing a power supply rebuild,and replacing the output tube coupling caps at minimum. Clearly,both of our units are from the same era,and likely the same production run,as these were very short-lived items. In my case,the filter caps were very leaky,as were the output coupling caps,which was causing power transformer and power tube overheating.I really couldn't take the risk of causing avoidable damage,so I put mine aside.
Even if "running good" for the moment,I would not put any faith in these components behaving themselves in the long run. Too nice (and rare!) a machine to take a chance.
Art
Seriously though,you should give due consideration to performing a power supply rebuild,and replacing the output tube coupling caps at minimum. Clearly,both of our units are from the same era,and likely the same production run,as these were very short-lived items. In my case,the filter caps were very leaky,as were the output coupling caps,which was causing power transformer and power tube overheating.I really couldn't take the risk of causing avoidable damage,so I put mine aside.
Even if "running good" for the moment,I would not put any faith in these components behaving themselves in the long run. Too nice (and rare!) a machine to take a chance.
Art
Dswankey
Lunatic Member
EOL? end of the line as in no good? How did the 5 12AX7's test? it would be bit concerning if they all tested as you say and I interpret EOL.
JPNH
Active Member
V101, V3 and V102 were testing on the weak side. I haven't checked the others yet hopefully tomorrow. When I say EOL I just mean they're testing weak enough that I would want to replace them in the near future. I have 5 Sylvania 12ax7s from the late 50s that are NOS and four NOS Westinghouse House 7591s from around 1964 I was going to use. And I have plenty of Admiral branded NOS 6U8s laying around. Once I open it up I'll figure out why they were testing weak or if there's an issue. Those three tubes also don't seem to be original as the others are. They look like they were swapped in at some point for who knows what reason. Even in it's current state it's the best sounding tube receiver I've owned. Just don't want to use it much longer until I can get the internals sorted.
JPNH
Active Member
Thanks Art. Yeah I'm not going to push it much longer before I take it out of service, open it up and start refurbing it. Still the best sounding tube receiver I've owned in its current state. I can't believe how advanced some of the functions are for 1963.I too have a 340B. Unused presently due to desperately needing a rebuild,it patiently sits in my "to do" pile. When it was running though,it was a most impressive machine. Tuner and amplifier sections were both excellent,and it had enough bottom-end grunt to effortlessly rock the shop. Any tube receiver that can push Humble Pie to those levels gets my vote
Seriously though,you should give due consideration to performing a power supply rebuild,and replacing the output tube coupling caps at minimum. Clearly,both of our units are from the same era,and likely the same production run,as these were very short-lived items. In my case,the filter caps were very leaky,as were the output coupling caps,which was causing power transformer and power tube overheating.I really couldn't take the risk of causing avoidable damage,so I put mine aside.
Even if "running good" for the moment,I would not put any faith in these components behaving themselves in the long run. Too nice (and rare!) a machine to take a chance.
Art
PS Love the Pie RIP Steve Marriott.
