>I considered a SS amp before beginning my current 8877 >project but was stopped by two things: >1. A suitable power transformer for 50 VDC 50 A output. >2. The output filtering and matching network for all HF band >operation. >Both of those are doable of course, just a bit easier with a tube amp. >I'd be most interested to hear how folks solved those issues. >73, Bill W6WRT Hi Bill, Item #1 is easy. Get a surplus 48V switching power supply from the telecom world. My best suggestion for #2 is a dual pi-net. 50 ohms to 500-1000 ohms back to 25-100 ohms. This provides both matching & harmonic suppression. Two switched coils, 3 (small) vac. variables, plus some ceramic padders for 80 & 160. Physically about 6" x 7" x 12" including motor drives for the caps & 10 position bandswitch. 73 & Good morning, Marv WC6W * ___________________________________________________________________ Try Juno Platinum for Free! Then, only $9.95/month! Unlimited Internet Access with 250MB of Email Storage. Visit http://www.juno.com/value to sign up today!