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Reviews Categories | Electron Tubes | Heintz-Kaufman 811A Gammatron Help


Reviews Summary for Heintz-Kaufman 811A Gammatron
Reviews: 1 Average rating: 5.0/5 MSRP: $None.
Description: Reference- Higher gain than new manufactures today!
Product is in production.
More info: http://
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You can write your own review of the Heintz-Kaufman 811A Gammatron.

N8FVJ Rating: 5/5 Jan 7, 2001 11:40 Send this review to a friend
Very High Gain!  Time owned: 0 to 3 months
As a reference I tested the H&K on a Hickok model #752 Gm type tube tester. I also referenced a new Cetron JAN 811A.
H&K
6.3 volts filament- 1450 mhos
5.0 volts filament- 1350 mhos
4.3 volts filament- 1150 mhos
3.0 volts filament- 750 mhos
CETRON
6.3 volts filament- 1100 mhos
5.0 volts filament- 900 mhos
4.3 volts filament- 700 mhos
3.0 volts filament- 450 mhos

Although the H&K tube has higher gain over the Cetron, this does not indicate the H&K will have longer life. This reference is not scientific by any means, just interesting. I am quite pleased with the performance of Cetron 811As and are very welcome in my amplifiers, especially so after Svetlana dropped production of the 811A.
 


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