HW-101 step 3

[Clark, John]

Fred, sorry you missed the other steps.

Lets see,  The 307 v is OK, the difference is both the change from 110
vac of 30 years ago to 121 today and the +- 10%.

I think step 1 was check all the tubes first and replace the melco (or
something like that)

I did have a problem understanding the initial setup of the VFO and dial
with the 100KHz tone, but I figured that one out.  Use the coil to pull
the tone up to the 500 mark, and use the trimmer caps to pull the other
tone down to the 0 point.  It took me about 10 cycles of going to 500
and then back to 0 to get it set right on.

I still have a problem with my 100KC crystal.  It has aged to 101KC.  I
am talking with someone to trade for a new one.

That's all for now, but watch for more, I've got a couple of duzzies
coming up.


73
John
N0URE


|-----Original Message-----
|From: Fred Finster [mailto:Fred_Finster at el.nec.com]
|Sent: Wednesday, May 05, 1999 11:49 AM
|To: Clark, John
|Subject: RE: HW-101 step 3
|
|
|John,  keep posting,  I enjoy learning your steps in repairing
|your HW-101.
|I want to see
|what develops.  Like the answer to your question below,  MOD
|or TYPO.  This
|is interesting
|maybe you can tell me via direct email what developed on steps
|1 & 2.   With
|the 307V on
|the screen grid.   I have an old TEMP0 1 that I am slowly
|working on to get
|going.  So anything helps.
|
|Fred Finster  WB7ODY
|e-mail:  Fred_Finster at el.nec.com  Web Site
|http://members.aol.com/fredf/
|Tech Staff Engineer  (408) 588-5726  FAX (408) 588-5464
|NEC Electronics Windows CE Architecture Labs
|2880 Scott Blvd.  M/S SC2202
|PO BOX  58062
|Santa Clara  CA 95052-8062
|
|
|
|> -----Original Message-----
|> From: Heathkit Owners and Collectors List
|> [mailto:HEATH at LISTSERV.TEMPE.GOV]On Behalf Of Clark, John
|> Sent: Tuesday, May 04, 1999 8:19 PM
|> To: HEATH at LISTSERV.TEMPE.GOV
|> Subject: HW-101 step 3
|>
|>
|> A fix worse than the problem?
|>
|> My S meter would drift up to S-3 after about 20 minutes.
|> I found a mod from the K4JPN list.
|>
|> "Replace R106 with a 33K 2 watt resistor"
|>
|> The standard R106 was 22K.
|>
|> The S meter has stopped drifting, but the signal levels are so low.
|> This puts  pin 6 of V 3 down to 130 VDC.
|>
|> Is this mod a typo?
|>
|> 73
|> John
|> N0URE
|>
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|
|

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