Problems with my Tri-Vista 300--Need some help

Quick update. Looks like the local repair guy will be able to replace the tubes without a hitch. He tested them and said two were faulty. Called MF and they said it was their first experience with such a thing. Meanwhile, I have an order in with a tube company out of Chicago, which is temporarily out of stock. Also checked with two other companies, including Tubeworld, both out of stock. Tubeworld told me to check back in a month!

So the latest is that I'm having to wait an inordinate amount of time because the seemingly readily available tubes have been bought out for the time being. Amp has been waiting in the shop now for two weeks. Anybody have a couple of tubes to spare me? Thanks.

Washline
But cant MF supply you with the spare tubes ? I thought they had one extra set per amp manufactured or was it the Nu Vistas ? I cant remember....Perhaps you can try Wim Bouwman at Mr Valve in South Africa,my local tube supplier,chances are slim but I think worth a shot ...mail is bouwman@telkomsa.net
Chris

Thanks Chris. Looks like I may have finally hit paydirt over here. Triode Electronics in Chicago finally came through after two weeks it seems. Going to have these tubes on Friday. I was getting worried after substantial waiting that they wouldn't be able to get them. Ordered ten for six dollars each. Cheapest I've seen: www.triodeelectronics.com

MF will supply the tubes but they want to see the originals first. At least that's what the dealer said in Hong Kong. Pretty inconvenient. I'll post again after I get them by fedex next week and take them to the shop.

Washline,

They probably want to see the originals if they are going to replace for free. I was told when I bought my TriVista that I could order a second set any time, that they set aside an extra pair for each unit.

I want to thank everyone once again for your replies on this thread. I managed to get my amp back today with new tubes. Indeed, the original trivistors were faulty and are now replaced. Probably the first instance of bad tubes on this gear.

Secondly, there is indeed a big problem with the source selector on this machine now. Wasn't when I initially took it into the shop, but I don't doubt the repairman's integrity. I brought it back home and when i turn it on, it travels the circuit around the sources, but rather than settling on the most recent source, as normal, it starts to click repeatedly against either the top or bottom of the source array. I finally grabbed the selector and tried to forceably put it on the proper source. Finally, it stopped this strange behavior and I could listen to music again. I'm going to have to get a new selector chip and replace it in the amp. Has anyone else had a similar problem with this amp? Thanks.