SB310 problems

[Mark Johnson]

Doug, don't give up. I have a lot of Heath stuff and it's great, once 
working. In fact, and I know this will stir much nashing and wailing, I 
prefer my Heath stuff over my Collins S-Line stuff when it comes to ease of 
operation. Wow!

If the HFO adjustments didn't work then its time to look at the actual tuned 
circuits. Did you get the HFO adjustments working as per the manual? The 
sloping peak adjustment is important as if your too close to the actual 
peak, the oscillator will not oscillate.

Since some bands work, then the problem has to be in the front end.

Question, and this is KEY with Heath stuff. Did the radio work at any time 
that you know of? If not, then start looking at actual wiring problems and 
mistakes. I've had a lot of Heath gear that never worked from day one as 
there were mistakes made. Also, those coils are packed in very tight. Make 
sure there is no coil connections touching other coil connections. Also make 
sure the coil cover is not shorting some coil connections to ground.

As for the SB dial, yea, its not great but with patient and careful 
adjustment, it works OK.

Mark V Johnson VE3DJU/VE3DDI


----- Original Message ----- 
From: "ddswl" <ddswl at CENTURYTEL.NET>
To: <HEATH at LISTS.TEMPE.GOV>
Sent: Saturday, October 17, 2009 5:38 PM
Subject: Re: [HEATH-TEMPE] SB310 problems


> Ok guys, I have tried all the tips, many tnx to ALL, and
> none have worked. Will get away from it and MAYBE try once more, however 
> this is my first SB type of toy & probable my last! Sure is a Mickey Mouse 
> dial system! Got that workin' fine tho--
> Tnx again for all the help!!
>  Regards----Doug W7LNB
> PS; will try a xtal and then thro the rig in the junk pile!!
>
>
> ----- Original Message ----- 
> From: "ddswl" <ddswl at CENTURYTEL.NET>
> To: <HEATH at LISTS.TEMPE.GOV>
> Sent: Friday, October 16, 2009 1:50 PM
> Subject: [HEATH-TEMPE] SB310 problems
>
>
>>I have an SB310 receiver with two dead bands (3.5--26.9). I checking 
>>voltages when the probe touches pin 1 (grid) of the RF, ALL bands come to 
>>life & work FB with an 18 inch clip lead to the grid.
>> Resoldered all RF tube and band switch points, checked caps & res & 
>> checked wiring, all is correct and so are voltages.  What next?? Any 
>> ideas?? Tnx--Doug W7LNB
>> ddswl at centurytel.net
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Products bought, sold or traded here is the responsibility of the
parties involved.  This list and the City of Tempe are not responsible
for losses or misrepresentations of any kind.  Buyer beware!

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This list is a public service of the City of Tempe, Arizona
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Subscription control - http://www.tempe.gov/lists/control.aspx?list=HEATH
To post - HEATH at LISTS.TEMPE.GOV
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