Sorry I don't know a motrac from a micor. On the other hand I have worked on Mastr pro, execII and mastrII enough to tell the difference between them.
'The exciter is a TLD1372A with a date stamp of May 1974. It runs an 8552 tube and puts out about 10 watts. Based on the model chart in the front of the manual, I would guess this to be a B93MPB series station. Based on the picture in the manual, it is not in the original rack. It does have a control module panel but does not have a receiver. When it is in service, the audio and COR come from our MastrII repeater. John Lock kf0m at arrl.net -----Original Message----- From: [email protected] [mailto:[EMAIL PROTECTED] Behalf Of [EMAIL PROTECTED] Sent: Monday, February 25, 2008 5:17 PM To: [email protected] Subject: RE: [Repeater-Builder] Re: Motorola TLD6612A amp repair What series station is thisTLD6612A amp used in? MICOR? MOTRAC? -----Original Message----- From: Thomas Oliver Sent: Feb 25, 2008 3:01 PM To: [email protected] Subject: RE: [Repeater-Builder] Re: Motorola TLD6612A amp repair If you need another whole amp or transmitter let me know, not interested in taking a working one apart to rob the insulator. tom > [Original Message] > From: skipp025 <[EMAIL PROTECTED]> > To: <[email protected]> > Date: 2/25/2008 12:08:05 PM > Subject: [Repeater-Builder] Re: Motorola TLD6612A amp repair > > Hi John, > > > "kf0m" <[EMAIL PROTECTED]> wrote: > > I am working on repair of a TLD6612A 2 meter repeater amp > > that runs a pair of 8560AS tubes. > > Should be quite the smokin' signal when you have the amplifeir > in line. > > > It worked fine for a number of years and then suffered > > what appeared to be lightning damage. > > > > The insulator between the plate line and the plate tuning > > disc was arced through among other damage. It is a rectangular > > piece of clear material that looks like mica. > > If it is a clearish but dark material it probably is mica. If > it's the thicker white insulating material it might be beryllium > oxide, which has danger warnings about breathing any dust from > the material when drilling or cutting into it. > > > I tried adding some Teflon tape to cover up the puncture. > > Nope, ain't gonna work. > > > When I fired up the amp today, It arced through again during > > the tune up process. Anyone have suggestions for a replacement > > or have one in their junk box? > > > > John Lock > > kf0m at arrl.net > > Google mica sheet and or look at companies like McMaster Carr. You > can often find small sheets and parts at woodstove and appliance > repair places/stores. > > www.antiquestoves.com is one place I found some mica sheeting > available on line. > > And of course I searched "mica sheet" on Ebay and hit 10 or so > supply sources right off the starting line. > > cheers, > s. > > > > > > > > > > Yahoo! Groups Links > > > > > > -- > No virus found in this incoming message. > Checked by AVG Free Edition. > Version: 7.5.516 / Virus Database: 269.20.9/1292 - Release Date: 2/21/2008 4:09 PM
