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Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
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Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
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In Reply to: Re: As a point of historical fact posted by Soundmind on July 18, 2006 at 17:43:47:
HiMcintosh was a top commercial brand in the old days, they had novel circuitry and pulled some clever tricks. For kids that worked part time at a TV store where (stupid) rich people traded Mac stuff in for the NEW space age (mid 70’s) Panasonic hifi receivers (and could get the trade ins for a song), they were the gold mine.
For example, with a change to a SS rectifier, a 60 Watt rated amp met the spec at 90 Watts at a mac clinic I took it to. They were conservative, happy driving an electrostatic speaker, nice looking (cheap at the time, wish I had a time machine) and heavy.
The transformers were larger and more expensive than most and had unusually high primary inductance making both open loop small signal corner very low and reduced (as it is non linear primary inductance that is the culprit) the iron problems.
They could afford to have wound to the higher inductance because having both a plate and cathode winding cut down the leakage inductance which sets the high frequency corner. Like so many things, one limit indirectly effects the other.
Anyway, they made good stuff “back thenâ€, but the reputation doesn’t seem to have survived the changes in ownership.
Best,Tom
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Follow Ups
- Re: As a point of historical fact - tomservo 18:43:53 07/18/06 (1)
- In the early 1960s, the pecking order as I recall it was; - Soundmind 04:21:51 07/19/06 (0)
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