Print Page - Space-charge Tetrodes in Inverted Mode ?

Title: Space-charge Tetrodes in Inverted Mode ?
Post by: zesak on November 14, 2012, 09:08:11 PM

Is it possible to connect space-charge tetrode in inverted mode ?

This would be for possible SE parallel OTL mini amp (inductive or resistive load, and, say 16 or 40 ohm speaker).

Any existing and/or working designs like that out there ?
(I am aware of several space-charge mini power amp circuits but have not seen any space-charge tetrode inverted mode designs).

Title: Re: Space-charge Tetrodes in Inverted Mode ?
Post by: armdnrdy on November 14, 2012, 09:16:24 PM

Here's a dual one you can experiment with if you don't mind the price!

http://www.ebay.com/itm/LOEWE-2H-DC-DUAL-SPACE-CHARGE-TETRODE-1926-GERMAN-MADE-/160537981210

Title: Re: Space-charge Tetrodes in Inverted Mode ?
Post by: zesak on November 14, 2012, 10:21:08 PM

Interesting tube,
however, at cca $1,800, I think I'd rather stick with 12K5, 12DS7, 12DL8 ......

Title: Re: Space-charge Tetrodes in Inverted Mode ?
Post by: zesak on November 14, 2012, 10:29:18 PM

I am also wondering if there are any Russian military space-charge tetrodes.
Any idea ?

DIYstompboxes.com

DIY Stompboxes => Building your own stompbox => Topic started by: zesak on November 14, 2012, 09:08:11 PM