Hello Amps,
Thursday, October 18, 2018
They sound like Bristol splines, and are popular on older US
equipment, some reckon the spline form is far more reliable than Torx
or hexagon. I have some Collins gear that use them and bought a
Bristol spline wrench kit via Ebay, but you can buy direct. I am in
the UK and yet they arrived within less than one week.
https://www.ebay.com/itm/Bristol-Spline-Wrench-set-SS-508-Vintage-Ham-Aviation-Radio-Gear-/361977966828?hash=item54479170ec
Best regards,
Chris 2E0ILY mailto:chris@chriswilson.tv
MBK> Greetings,
MBK>
MBK> I am repairing a Henry 1KD5 for a friend. It was a 80-15m model that
MBK> was upgraded to 80-10m and no longer worked on 40-20m. I found that the
cam
MBK> shaft switches used for fixed tank C were not band aligned with the
MBK> bandswitch leaving padder caps in place on 40/20m.
MBK>
MBK> Simple to fix right? My problem is I went to loosen the shaft coupler
MBK> and looked for the allen screws. Difficult for me to see but with some
MBK> visual aids I see that this amp has what looks like a phillips spline type
MBK> screw. Approximately 2mm or 0.079" inside the shaft fit, but it appears to
MBK> be a X shaft spline. What is the proper name for this screw and tool that
MBK> would be used to remove it?
MBK>
MBK> Also there are 4 screws, 2 each on 90 degree offsets. Two I can get
to,
MBK> and the other 2 are accessible maybe with right angle tool, like an allen
MBK> wrench was made to do. Any hints on access or maybe swap the couple out
MBK> completely for one that uses standard hardware.
MBK>
MBK> Many thanks in advance from the not mechanically inclined.
MBK>
MBK> 73's Mike K9MK/5
MBK>
MBK> Off reflector email: k9mk at flash dot net
MBK>
MBK> _______________________________________________
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