[JMS] Millen stuff

Don Buska [email protected]
Wed, 12 Nov 2003 08:18:22 -0600 (CST)


Tom,

I want to add some additional information to the JMS website relating to the 90281 HV 
supply.  I noticed from your pictures that you have the later version with the 
High/Low voltage switch (above fuse holder on rear).  Mine doesn't and I want to 
describe the two variations on the site.  My question relates to the left of the 
switch are two terminal strips.  I know one of those is labeled 6.3V-G-HV (probably 
the lower one) the same as mine, but how is the upper strip labeled?  I think that is 
a jumper to remove the first filter cap out of the circuit (actually C4 and C5 in 
parallel) thus making it a choke input filter. It might be labeled HIGH and LOW also.

That's how I run my 90281.  I opened it up and removed the connection to C4 and C5 to 
lower the supply voltage and provide better voltage regulation (a characteristic of 
choke input filters).  Your switch appears to be set at LOW so my guess is that top 
shorting jumper on the terminal strip is also set at LOW.

Sure is a bunch of nice stuff Tom.  Really sorry to see you disposing of it all, but 
we can only support so many hobbies at once.  At least that's what I keep telling 
myself, hi.

73

Don



On Tue, 11 Nov 2003 17:18:42 -0800, Tom Smith wrote:

>Hi Joe,
>Apparently a few of the jpegs were corrupt. I think I have this corrected
>now.
>
>Thanks,
>Tom
>
>www.hal-pc.org/~tsmith/rack_1.jpg
>> www.hal-pc.org/~tsmith/90881_1a.jpg
>> www.hal-pc.org/~tsmith/90881_2a.jpg
>> www.hal-pc.org/~tsmith/90831_1.jpg
>> www.hal-pc.org/~tsmith/90831_2.jpg
>> www.hal-pc.org/~tsmith/90800_1.jpg
>> www.hal-pc.org/~tsmith/90800_3.jpg
>> www.hal-pc.org/~tsmith/90800_4.jpg
>> www.hal-pc.org/~tsmith/90800_5.jpg
>> www.hal-pc.org/~tsmith/90701_1.JPG
>> www.hal-pc.org/~tsmith/90701_2.JPG
>> www.hal-pc.org/~tsmith/90281_1.JPG
>> www.hal-pc.org/~tsmith/90281_2.JPG
>
>
>----- Original Message -----
>From: <[email protected]>
>To: <[email protected]>
>Sent: Monday, November 10, 2003 9:09 AM
>Subject: Re: [JMS] Millen stuff
>
>
>> Tom
>> One more try
>> If still available, send me a price for everything and your address-
>> Will get a MO on the way this afternoon
>> Joe
>> [email protected]
>>
>>
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