I've used a SBA1250/1450 in my new preamp box:
Other possible sources
On 22/09/2020 13:15, GM6VXB via
After a few good days on tropo, this morning turned on the
23cm system to find that the pre amplifier had died.
This was a very good VHF Designs low noise high gain pre-amp.
Found that the initial device had gone short. Paperwork says
an 'SKY67151', but looking closely it looks like
and is marked as a PGA-103.
Anyway, replaced it with a 103 but the pre amp is still very
low (maybe no) gain.
So is there a good source of 'built' pre amplifers as the
only ones I can see are the VHF design ones.
Eyesight now not good enough to try to build one of the DDK
(QRT 23cm until sorted.)
Stephen Tompsett (G8LYB)
Tel: 01788 578940
Mob: 07956 855816