Hello All, I need the On/Off switch/Gain control for a Drake SPR-4 or RR-1 receiver. This is a combination dual pot (10K and 3K) and SP-ST rotary switch. Thank you, Bruce WA8TNC -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.308 / Virus Database: 266.10.2 - Release Date: 4/21/2005