I've been working with 6M repeaters for some time, along with my mentor (ELMER) - just a friendly word of advice regarding the Mastr Pro. The receivers are great but the EP38 can have some real problems. You MUST change the HV caps - I've done so - the total cost is about $50, not to mention the time involved. Then, you are dealing with a very very heavy power supply tube multiplier and final. Be wary of the "stacking" relay that combines the HV, yours is likely dirty by now and will require attention. The antenna relay is virtually impossible to find if yours fails. Also, the 10V regulator may require some attention as the caps may be bad. Be absolutely sure to bring your up to power slowly and check all of the voltages before you hook up your strips.
In brief, think twice before putting that behemoth on the air. Unless you have a real sentimental attachment to Mastr Pro (I did, mine was given to me by my then Elmer. now an SK), there are a better (and easier) choices. A Mastr II or MII Exec 100W can be had for about $50 from any one of a number of reliable suppliers. The 100W version is great, because by disabling 2 of the 4 final devices you get left with a solid continuous duty 50- 60 watt radio that will play all day, and well into tomorrow. You also get a solid state radio with components that are likely 10-15 years newer than your Mastr Pro. If you are paying rent (as I do here in LA) by the amount of rack space you occupy, the Mastr II or Exec II will be much cheaper than the EP38 which takes up a lot of room. Also, if your landlord sees those tubes he may surcharge you for electricity. Just a few thoughts. Been there, done that. But that's what its all about. Have fun. --- In [email protected], "Mike Dietrich" <[EMAIL PROTECTED]> wrote: > > I have a pro station p/s available for free if you will pay shipping from TX. > also have some spare low band strips if you want them too. > > Contact off list at [EMAIL PROTECTED] > ------------------------------------------------------------------- ----------------- > ----- Original Message ----- > From: wa1nh > To: [email protected] > Sent: Friday, September 05, 2008 12:15 PM > Subject: [Repeater-Builder] Yet another request for Help on a 6M repeater > > > First post to the list. Please be kind. > I am putting together a 6M repeater. A friend gave me a GE Master Pro > mobile. I need an ep38 ac power supply to put this baby on the air at > 100% duty cycle. Does anyone know a good resource for this power > supply. I have been searching for 2 months with no luck. > I have already built an 8 cavity filter duplexer using 1 5/8 hardline. > (was easy, got plenty of scrap at work) > > Jason, WA1NH > (you guessed it, in NH) >
