I have done it both ways, swapped a mobile into the base hardware and bent/bolted the 220 to the shield or cage, also have wired the TO-3 to the mobile amp board. No failures yet. Might not be proper or perfect but it works. Don Kirchner W5DK
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Sid Sent: Thursday, October 01, 2009 7:05 AM To: [email protected] Subject: [Repeater-Builder] Mastr-II, pass transistor in power control circuit T%his is in reference to the pass transistor in the M-II PA power control circuit, (sometimes identified a Q 215).. In the mobile units this transistor is the TO-220 type. In the continuous duty station transmitters it is a TO-3 type. My questions are if you put a mobile transmitter board in the station heat sink assemble will the TO-220 transistor be ok with continuous duty operation?? Also,is the power control circuit the same in the mobile and station transmitters, so that you could remove the TO 220 and wire in a TO 3. Thanks. Sid. ------------------------------------ Yahoo! Groups Links
