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Old December 5th 12, 02:54 AM posted to rec.radio.amateur.homebrew
Arid ace Arid ace is offline
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First recorded activity by RadioBanter: Sep 2012
Posts: 21
Default Wes Hayward hybrid cascode amplifiers from 2007 QST.

On Thu, 22 Nov 2012 02:27:13 -0800 (PST), Dana wrote:

On Thursday, November 8, 2012 6:37:09 PM UTC-8, Arid ace wrote:

I wonder why you didn't try to get an oldie like the Plessey SL312. Look it up,

and see that it's perfect for the job - it provides some 30 dB gain without an

input up-transformation and with a larger AGC range.


Is the SL312 still available? Texas Instruments' TL026 is still new from
DigiKey and Mouser, even through-hole parts. Av of 55 and 50dB of AGC
range.

Cheers,
Dana K6JQ


My error - the IC mentioned should be SL612C and nowadays it's available from
China via eBay:
http://www.ebay.com/itm/120922014405... 4.m1497.l2649
It has a much wider AGC range than the TL026, up to 70 dB IOW higher than the
stage gain.

Jan