[Amps] External QSK

[Gary Smith]

Hi,

I'd like to add QSK to my AL-1500. My rig is a K3.

The Ameritron QSK-5 uses PIN diodes which would be perfectly silent 
but I don't use a tuner anymore as my antennae are cut close enough 
that the amp has no problem but the pin diodes in the QSK-5 won't 
handle anything but kid gloves SWR.

Array solutions sells the QSK master but it's too pricey at this 
moment and I understand they are no longer using the vacuum relays in 
it.

Anyone know of a good schematic I can get ahold of to make an 
outboard QSK unit using Vac relays?

I do have an old Johnson tube T/R but can't see how that would be of 
help.

Thanks!

Gary
KA1J