7 Feb
2011
7 Feb
'11
10:57 a.m.
On 2/6/2011 12:42 PM, Jonas Otter wrote:
Try here for the on line version.
http://www.tubebooks.org/
I will have to find mine... From what I remember, it's a yellow cover and
titled 'High Quality Sound Reprodcution'. It includes (I think it this
order) the 5-20 (EF86, ECC83, 2*EL34, GZ32), preamp for the 5-20
(3*EF86), FM tuner (I can't remember the full line-up, I am pretty sure
the IF amplifiers are EF41s, the detector an EB91 with an EM80 tuning
indicator), the pre-amps for the 5-10 (EF86) and the 5-10 itself (EF86,
ECC83, 2*EL84, EZ81),
If you could find it and give me details of it, I can start looking. That
would be much appreciated.
There were of coruse other FM tuners for the home
constructor at one
time, Some easier to align than others...
I also have the GEC book on audio amplifiers. The _low power_ one is the
Williamson (15W, 2*KT66 in the output stage). I think the highest power
amplifier schematic in that book gives 1.1kW RMS into the speakers...
*Drool*
Another book I shall have to try and find...
Someday I must get round to building a valve amplifier. Jonas
Ben.
PS. A GM-70 ( $90 ) might substitute for V1505.