Monarch STA-100X Refurb - diyAudio
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Old 31st August 2009, 03:19 AM   #1
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Default Monarch STA-100X Refurb

I recently grabbed on to a Monarch STA-100X AM-FM stereo receiver. It's a fairly simple, low end mid-60's metal box using a 6AQ8 and 2 X 6BQ5 single ended outputs. You know how a lot of Fleabay adds talk about their items being used in a non-smoking environment? Not this one... After a session with Mr. Simple Green and a brush and soft cloth, the thing will shed its nicotine haze and look fairly decent.The top needs to be wire brushed and repainted, as it's a bit scratched up.

Obvious other measures are a re-cap, as the electrolytics are older than a lot of the members of this forum. Anyway, does anyone have a lead as to where I could look for a manual? I want to cast a beady eye on the phono amp, the tone controls, and the power amp, as I can likely do a few things to improve them. An RH-84 type output amp comes to mind, for example. I suspect the same people made this as made my Lafayette amplifier, as the components and construction look similar.

I'll probably set this one aside for awhile after I clean it up, as I have a host of projects ahead of it. However, I want to be thinking about what I can do for it. Schematics?
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Old 31st August 2009, 05:11 AM   #2
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Calrad . i believe was also by the same maker.

If it is SE it can't be all that hard to trace the circuit.

dave
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Old 31st August 2009, 05:20 AM   #3
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I'm not worried so much about the power amp as to the rest of the receiver. I haven't opened the bottom cover, but I'm expecting the usual point-to point hodgepodge. There is one PCB, I think devoted to the FM demux.
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Old 17th September 2009, 03:37 AM   #4
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Did you find a schematic or alignment data by chance?
I found one of these this summer at a yard sale as well
WOT
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Old 17th September 2009, 08:12 PM   #5
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There is an entity in Manila that purports to stock a soft copy of the manual, but I don't trust them enough to give them my CC number. If they took Paypal, I'd go for it.
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Old 18th September 2009, 05:23 PM   #6
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Quote:
Originally Posted by wrenchone View Post
There is an entity in Manila that purports to stock a soft copy of the manual, but I don't trust them enough to give them my CC number. If they took Paypal, I'd go for it.
I hear ya. Maybe one of the download services have a copy. Plus I'll try Tom Bavis over at AK to see if there was ever a SM printed by SAMS. I'll find you if I find one and vice-versa??
Thanks
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Old 18th September 2009, 06:21 PM   #7
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Sams was the first place I looked - no joy so far.
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Old 19th September 2009, 07:33 PM   #8
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You can try Tom Bavis here too...
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