[sdiy] slightly OT: tube design of preamp

[R. D. Davis]

Quothe harrybissell, from writings of Sat, Aug 21, 2004 at 08:23:05PM -0700:
> in college I had an old Thorens turntable...  with a nickle epoxied
> to the tonearm shell.  The operant term is "old"...  the tonearm was
> designed for a much heavier cartridge.  The coin provided the
> necessary weight to counter-balance the normal range of adjustment.

Hmmm... what model was your Thorens?  I remember having to tape coins
to the tonearms of old BSR turntables many years ago for scratched
records.

> Of course a lot of people 'dissed' my turntable, thinking it was
> incapable of tracking properly...  I ran it at about 2.5gms which
> worked well for all the records that were flat...  ;^P

My Thorens TD-160 seems to track everything, including the most warped
records.  It's got an old Shure V15 series III cartridge with a new
Shure stylus, tracking at 1 gram.  The only problem is that it won't
play 78 RPM records.

> H^) harry   (now plays CDs)

:-)

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