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Original Message
RE: Vintage Grundig Majestic Stereo Console
Posted by shermanr@prw.net on September 12, 2007 at 10:16:38:
I have to dig-up some schematics for you and scan them or photocopy.
Several years ago, I restored a similar Grundig console. It had an AM-FM-SW Radio/Amp unit with white/brown/gold faceplates.
The weak point in these are always the EroFoil signal coupling caps, they dry-out and conduct DC.
The output transformers on the amplifier unit are VERY delicate, wound with very, very thin wire. If there is something not correct with the bias on the EL95 tubes, the primaries will easily open-circuit before the red plated EL95's have a chance to die.
These consoles have a very warm sound. Good for an extra family room system.
The hookup wire used in these Grundig's is close hair-thin so the chore of restoration depends on delicate hands and good soldering skills.
I recall that the EL95's used a common cathode resistor (like the Dynaco ST-35) for all 4 output tubes.
I will scrounge around for the schematics post them as soon as I can. The amps in these units are very similar from model to model with very small variations. The OPT's on mine were gone so I bid on an Ebay trasher and scavanged the OPT's.
Unfortunately the termites got the best of the cabinet and I parted-out the individual components and sold to my collector friend.
Now these termites are living the the Kitchen cabinets on my beach apartment. They went from music appreciation to cooking.
No electrostatic tweeters on mine, just plain ole oval drivers and some abience speakers on the sides.
BR/Rich