Re: Hifi landmarks

In article <lhnbf29keoipfn8mtt4u6m0vhv5q7c7oid@xxxxxxx>, flegal@xxxxxxxxxxx wrote:
On Wed, 30 Aug 2006 13:43:01 -0400, "soundhaspriority" <nowhere@xxxxxxxxxxx>
wrote:

2. Please nominate a WE amplifier. I agree with you that one should be
included.

I would suggest the 86B

5. Your comment about the RCA SS design is informative. However, in this
list, I would like to, as much as possible, choose representative physical
units, rather than schematics.

May I suggest the SWTPC Tiger (1967).?

I had the Tigersaurus. Great value for the money then.


http://www.swtpc.com/mholley/PopularElectronics/Dec1967/PE_Dec1967.htm

6. Neither the early DC-300 nor the DC-300A were bulletproof. I included
them as one item because of distortion figures remarkable for the time,
achieved by precision biasing. A lot of people don't like the way they
sound. This, too, is noteworthy.

I have been repairing these and using them for the last 4 years. Great used buys. If
you know what parts to replace they can be put back to life. Out of about 4 or 5, I never
saw blown output transistors.

Agreed. The DC line was a milestone, but not a really great one. I could add
the Phase Linear 700 as well as a number of other high power amps...

7. If, in fact, Hitachi actually sold a MOSFET amplifier, rather than
samples and OEM modules, please supply one of the model designations, and I
will make the replacement.

I have the matching preamp, always wanted one of those amplifiers.

I also had desires for the Soundcraftsman stuff. Bought their equalizer in the 70's.

I also recently began restoring some of the Sansui integrated amps of
the late 70's. I never thought there were so many out there. Small problems here
and there which could be fixed. Nice construction.

If I remember correctly, the HMA-7500 was their first Mos-Fet amplifier to
reach wide distribution.

But don't forget the Yamaha B1 (1973 or so), an all J-Fet (not Mos-Fet)
design, or the Sony TA-N88 (1977), which combined a switching power supply
with a class D poser amp using V-Fet's. An architecture becoming quite
popular some 30 years later!

I have some bad thoughts about the construction of NAD and
I am still battling a Luxman M-02

.