[Heathkit] SB-102 drive belts

[Tom Chesek]

On two occasions I purchased belts on eBay. I don't remember who the sellers 
were but there is one right now that has the 3 belts for $2.95 and that 
includes shipping (postage).  Just do a search on heathkit belts. You can 
probably buy them a lot cheaper yourself but the hassle might not be worth 
it let alone the cost of gas to get to and from the hardware store.

Tom K3TVC



--------------------------------------------------
From: "Drew P." <drewrailleur807 at yahoo.com>
Sent: Wednesday, January 13, 2010 1:20 AM
To: <heathkit at mailman.qth.net>
Subject: Re: [Heathkit] SB-102 drive belts

>
> Jim Shorney wrote:
>
> "I reworked my HW-101 years ago to use string because I got tired of belt
> slippage. I would stick with the dial cord, it's a better solution IMO."
>
> Paul Kraemer, who originally asked the question, seemed to indicate that 
> the preselector/driver tune control on his unit tends to bind at one end 
> of the travel.  If the binding is not in the tuning capacitors, then I 
> would suspect that the stringing job was done poorly or that there is 
> excessive runout in one or more of the pulleys.  Removal of the dial cord 
> and rotating each shaft in turn would soon confirm this.
>
> I don't know what size o-ring to use, but a piece of string wrapped in 
> belt fashion around the pulleys then cut to length could be used as an 
> o-ring selection aid. It is said that the plumbing section of almost any 
> hardware store would have suitable o-rings.
>
> I don't care for the rubber o-ring belts as used on my SB-101.  They seem 
> to introduce a bit of backlash which makes tuning on 10 meters much more 
> touchy.  It could be that the belts have hardened with age and hence have 
> developed a "memory".  One of these days I will replace them with dial 
> cord.
>
> Drew
>
>
>
>
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