[Amps] Help with Henry Amp mechanical challenge

[Mike & Becca Krzystyniak]

Greetings,

 

    I am repairing a Henry 1KD5 for a friend.  It was a 80-15m model that
was upgraded to 80-10m and no longer worked on 40-20m.  I found that the cam
shaft switches used for fixed tank C were not band aligned with the
bandswitch leaving padder caps in place on 40/20m.

 

    Simple to fix right?   My problem is I went to loosen the shaft coupler
and looked for the allen screws.  Difficult for me to see but with some
visual aids I see that this amp has what looks like a phillips spline type
screw.  Approximately 2mm or 0.079" inside the shaft fit, but it appears to
be a X shaft spline.  What is the proper name for this screw and tool that
would be used to remove it?  

 

    Also there are 4 screws, 2 each on 90 degree offsets.  Two I can get to,
and the other 2 are accessible maybe with right angle tool, like an allen
wrench was made to do.   Any hints on access or maybe swap the couple out
completely for one that uses standard hardware.

 

    Many thanks in advance from the not mechanically inclined.

 

73's   Mike K9MK/5

 

Off reflector email:   k9mk   at   flash   dot   net