For another option, if you email W8JI. He has great blowers that fit
into Commander and Ameritron amplifiers.
They work really well on 50Hz too.
See https://www.ctrengineeringinc.com/ebm-blowers/
Scroll down to the High Speed Capacitor Run Blower.
It is listed as 60Hz but is quieter and more powerful than the orriginal
blowers in the AL-1500 and HF-2500 amplifers. How do I know this? I
bought one for each of those two amplifers I own.
It may fit into your Alpha 91B.
73, Alek VK6APK
On 10/03/2026 7:53 am, CHRIS QUARTON wrote:
Hello All,
Quick Question - does anyone have a replacement blower/fan motor for a Alpha 91b
Kind Regards
Chris Quarton - G5KC / VP8KCA
Security Specialist
M: +44 7584 566 996
E: chris@g5kc.com
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