Heathkit SB-200 specs

Frequency range:	10-80 m
Voltage:	Mains
Current drain:	8 A @ 240 VAC (16 A @ 120 VAC)
Drive power:	100 W
Maximum output power:	700 W
Dimensions (W*H*D):	14-7/8" x 6-5/8" x 13-3/8"
Weight:	35 lbs.
Manufactured:	1965-1974 in kit form
Other:	2 x 572-B or T-160-L in parallel

Heathkit SB-200 Builders Manual PDF

Heathkit SB-200 Linear Amplifier

 

 

WA0ZHH designed a Cathode Modulator for the SB-200.  It allows the SB-200 (or other similar grounded grid amplifiers) to be turned into AM transmitter inexpensively. 

Cathode Modulator Schematic by WA0ZHH

 

Here are some useful links for the Heathkit SB-200 :

http://www.k0gkd.com/sb200.htm

http://www.dwave.net/~twomules/sb200.html

http://www.westlawn.net/sk/sb200.html

http://members.cox.net/n4jk/sb200.htm

http://www.xs4all.nl/~pa0fri/Lineairs/SB200/sb200eng.htm