[Amps] SB-220 unbuilt

[John Lyles]

If you've always wanted to build your own kW amplifier, but don't have the gumption or parts to do it from scratch, there is a new-old-stock Heathkit SB220, never built, on epay. The're asking $1500, which might actually be worth it for someone in this situation. Getting a used -220 runs for $300-500 typically. As most know, it was a compact dual 3-500Z amplifier that is commonly modified, or used stock. A couple of things should be done such as improving the input tuning networks, and putting step start on the primary, at a minimum. Less critical but useful improvements include better T/R relay switching, better bleeder/equalizing resistors, etc. All this could be done during the kit build to save a lot of rework. I have no vested interest in this item, just passing along the info.

Item# 120189016945	

73
John K5PRO