Tube experts! - I T WORKS!

From: Mike Ford <mikeford_at_socal.rr.com>
Date: Sun Dec 5 17:37:16 1999

>>A word of warning. There is _NO POINT_ in replacing all the valves in a
>>Tektronix 'scope -- most of them will be fine even after many years of

>Okay.. (my lack of tube knowledge talking)... a TV repair guy I know who use
>to do a lot of tube work told me tubes only last a couple of years. I did

The tube newsgroup recently has been talking about buying old scopes just
to harvest the tubes. When you get a good look at what good quality tubes
cost these days I think you will see why. Here are some completed eBay
prices;

208721609 (4) NOS NIB Telefunken ECC803S/12AX7 Tubes $511.00 *
        17 * 12/04 08:04
204768092 10 TELEFUNKEN 12AX7 TUBES, HiFi TUBES AMP $222.50
        8 11/27 21:24
200257197 13 Mullard Short Plate 12AX7 Tubes (+3) $207.50
        7 11/20 23:44
200233119 Long plate Amperex (Holland) 12AX7 Tubes! $201.00
        8 11/20 22:06
209320344 4 telefunken smooth plate 12ax7 tubes n.o.s $183.50 *
        7 * 12/05 00:20
200550622 12AX7 A(ECC83) IEC 10M series, Mullard tubes $180.00
        5 11/21 14:10
210887834 5 Mullard 12AX7's NOS Radio Vacuum Hi-Fi Tube
        $167.50 16 12/03 00:03
204691362 3 TELEFUNKEN NOS NIB ECC83/12AX7 $157.50 10
        11/27 19:36
Received on Sun Dec 05 1999 - 17:37:16 GMT