[JMS] 90800 Coils

Sat, 08 Nov 2003 09:39:17 -0500

	My pleasure Cal!
Check with Ralph at James Millen Electronics and see if he has any of 
those end fed 160 and 40 meter coils. After thinking he didn't have one 
he managed to scare up the last remaining 80 meter grid coil he had in 
stock for my 500 watt amp. You'll find his email address on the JMS web 
site membership roster. He's a really nice fellow to work with. I bought 
my 90881 amp from him a couple of years ago which turned out to be the 
last remaning complete and unsold Millen amp in the company. I think 
Ralph told me at the time that it was the amp used in the company's lab 
years ago.
	I tell ya' I'm glad I went with the open racks for my setup (see  my 
rig photo in the membership roster area). It does open the back up to 
dust, but it also makes accessing the components and wiring much easier 
than using an enclosed rack.
	
	73, Gary - WA4IAM


kwylow zinjanthropus wrote:
> Thanks, Gary:
> I may end up doing the latter but we'll see (unless I can homebrew a 19" custom rack). By the way, good find in that Millen 500w amp. Even better find on that 160 meter grid coil you got for the thing! Don't suppose one can adapt coils to fit some of these old vintage rigs? 
>  
> Guess I'll be looking to find 160 meter and 40 meter coils for my 90800. In the meantime, I'm thinking about 'brewing something for 30 meters. Cal. N6KYR. 
> 
> Gary Carter <[email protected]> wrote:
> Cal,
> 
> I picked up the couple of open table racks I have at local hamfests. 
> They do pop up occasionally and I've seen them average between $5 and 
> $30. Keep looking and you'll find some good used ones at decent prices. 
> The enclosed table cabinet type racks tend to be MUCH more expensive 
> ($50-$100). Good luck!
> 
> 73, Gary - WA4IAM
> 
> 
> kwylow zinjanthropus wrote:
> 
>>Gary:
>>Many many thanks for that information. Apparently, it helped as I was perusing through the coil stock I had for my 90800 transmitter. It appears that I now have both grid and plate coils (#43082) so I can build up at the very least, a 75 meter AM station. My plan is to build up the power supply for the transmitter and modulator and MAYBE save some space for a matching JM oscope (ala Don's great looking all Millen transmitter). BTW, where does one get a matching cabinet to stick all this rack mount stuff in? I'm looking for something tabletop compact. 73 de Cal, N6KYR. 
>>
>>Gary Carter wrote:
>>A couple of years ago Bill Fizette, W2DGB was kind enough to send me a 
>>photocopy of a few pages out of a Millen catalog that included the page 
>>for the transmitter coils. If memory serves me right (it's been a few 
>>years since I owned a 90800 transmitter) the large coil on the 
>>transmitter came from the 43000 series and were end fed types. Here are 
>>the part numbers listed for the end fed types in the 43000 series:
>>
>>160 meters: 43162
>>
>>80 meters : 43082
>>
>>40 meters : 43042
>>
>>20 meters : 43022
>>
>>15 meters : 43115
>>
>>10 meters : 43012
>>
>>There ya' go! On a related note, I'm still looking for the following 
>>Millen coils for my 90881 500 watt RF amp: 42160, 42080, 42040, 42015 
>>and 43015. Don will appreciate the significance of this next story. At 
>>this past AWA Conference I was rooting around in the parts surplus room 
>>at the museum annex looking for the previously mentioned coils (as I 
>>always do) when I came across the 160 meter grid coil for the amp, p/n 
>>43161 with the socket as well!! Needless to say I gave the museum a 
>>healthy monitary donation for that rare bird!
>>
>>73, Gary - WA4IAM
>>
>>
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