Using contact cleaner in tube sockets

jea48

As a rule retubing an amp should not require sending it back to the factory or to a qualified manufacture service center.

Neither of these is a requirement for the VT-100, so I’m not sure what your point is.

Have you installed new 6922 tubes in a VT100 and biased them?
Do you think the average consumer that bought a VT100 could bias the 6922 tubes, correctly, to ARC specs?

Take the time and read Abe Collins how to retube an ARC VT100 mk ll amp.
Courtesy of Abe Collins
http://mycollins.net/audio/artube1.html

I would bet most ARC dealers, that do not have a service department, could not bias new 6922 tubes in an ARC VT100 amp.

To be fair, usually when retubing a power amp a service manual is not needed.

Jmho, ARC deliberately omitted the fact from the owner manual, that when it came time to retube the 6922 tubes in VT50, VT100, VT100 mrk ll, and VT200 the 6922 tubes would need to be biased. ARC had to know the average owner, more than likely, would not have the expertise, be qualified, to bias the 6922 tubes and would have to pay someone to do it.
Why would ARC do that? Because that could have cost ARC sales of the Amps.
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Thanks all for the input. I found a shop near me in New Haven CT that deals with ARC. I'm just going to take it in and have them take care of it. It will probable have to go to ARC. Thankfully the seller gave me a partial refund.

The best product hands down, first clean with 99% isopropyl alcohol
Craig make excellent small swabs. 
To protected long term over 10 years ,  and enhances tube socket conductivity 
As well as every thing  audio is  called Stabilant-22,   I have used many 
Many ,it is not messy has several applicators it comes with.
Check it out .it has been out for years even  NASA has been using it for years. 
Check it out.

Just a note the chances the bias will stay as set when shipped is slim as the vibration and knocking around during shipping will most likely change the bias a small amount so always better to do it locally with a reputable tech if the amp is not easily user biased.