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A very realistic recording which became a favorite demo record back in the days of Linn vs. Sota truntable debates. This record probably stimulated Linn's "toe tapping" argument for the superiority of the Sondek.

What is the repair history for failures in the differential/ current mirror/pre-driver stages? I read between the lines that some customers put thru hole parts in the wrong positions, but given a proper build, how often do you see failures in the portions which may become SMD? I kinda see the...

I have a DC-300 service manual dating back to 1985, and you would not believe then number of part changes and service bulletins concerning the class A driver transistor, and mods to keep this transistor's substitutes stable in older circuit boards. Yes the DC300 is stable, but if it blows up...

No one can save the DC300. Too many versions and unobtanium parts. That being said, a White Oak driver board would solve most of the problems if it physically fit inside.

If the arm has a screw holding the collar in place, rewiring is easy. Buy a length of Cardas tone arm wire on ebay (really nice stuff) Solder Cardas ends to the existing wires, remove the collar and gently pull the wires through the right angle at the pivot. Leave at least 2" of extra wire in a...

If McIntosh was highly profitable it would not be sold over and over. This is, if my memory is correct, the 6th sale of the company. When D+M Holdings owned Mc, my shop signed on as an authorized service center. At the time, manuals were paper and parts orders were by telephone. D+M modernized a...

NakamanDan is taking repairs. I will be taking new work in about 9 months.

The Soundsmith SMMC2 is a moving magnet. It replaces B&O MMC2 on the last generation of B&O turntables.

The boards pivot up at right angles and fit into slots, giving easy access to both sides. I think they are easy to work on, but you have to get used to the service manuals.

What model Tandberg?

I've repaired a few of these and generally the darlington outputs are the only transistors that fail. Since you have it open, it is time to replace the red electrolytics.

That is the Pickering logo for sure. Gray arms are massive with silky bearings. Rek-o-Kut arem are tubular stainless with tapered counterweights and die cast head shells.

I think the diamond will last for 500 plays, at which point you break his record and go shopping for another...My favorite used record store has bins of $1 records. 20 for $10

That is a good price for those 5692 tubes. I got $80 each for a pair last year.

I hope it is a Barry Manilow record

That is Pfanstiel #700-D7 aka Transcriber #11. I have some I can mail to you free

My tubes are aging in the cellar...

The Loki is nothing more than the parametric EQ found in Yamaha C-85 preamps, and many others. I find variable bandwidth EQ quite useful. I experimented once, which led to my practice of reducing the bias so the frequency I select will playback +0.5dB. I use 12kHz for type I, 15kHz for type...

Typical amp failure in the small NADs is outputs and drivers, and the bias transistor, plus a resistor or two. Q409 is shorted. My guess is one of the drivers is open causing the distortion.

Those resistors are in parallel with each other, and the pair is in series with the mids and tweeters. What is does is attenuate the mid/tweeters level by 50%, so if they are getting that hot, you are playing loudly enough to have 25 watts RMS going up in heat and smoke. I recommend turning it...