[Amps] Alpha 91b

[Alek Petkovic]

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 at g5kc.com
>
>
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