If you recall the discovery of vacuum tube glass resistors during the development of this amplifier (found here:
https://www.decware.com/cgi-bin/yabb22/YaBB.pl?num=1510887200/489#489), you probably know they are expensive and hard to find, but we did score 100 pcs, enough to do the first 25 amps.
I have been accumulating more of them in very small quantities and have decided to add them to the options in the shopping cart for the SE84UFO25 amplifier.
I have also decided to make this option more than affordable for a limited time or while supplies last. To keep things simple for those who ordered after the first 25 orders were placed, no worries, we have updated your orders with the glass resistor option at no charge.
This way we can so far say that no SE84UFO25 has been built without glass resistors and with any luck maybe the first 50 amps ever built will have them!
Also I should point out that we have so far discovered three variations of these, some are clear, some are white, some are black, and so far in testing the transparency is equal amongst them all.
No idea how long this option will be available because we can only find them New Old Stock, but hey - the worlds best 2 watt amplifier is certainly the place for the worlds best resistors.