Hi another question? Is this a drop in replacement for the kt-88? can I just put it in my st-120? thank you,Scott 
3 posters
GEC Ediswan cv345/12e1 power tube.... KT-88 eqivalent?
scottlowe- Posts : 38
Join date : 2014-04-05
- Post n°1
GEC Ediswan cv345/12e1 power tube.... KT-88 eqivalent?
by scottlowe Wed Jun 25, 2014 1:39 pm
stewdan- Posts : 231
Join date : 2010-03-07
Age : 85
Location : Houston Texas
- Post n°2
Re: GEC Ediswan cv345/12e1 power tube.... KT-88 eqivalent?
by stewdan Wed Jun 25, 2014 3:52 pm
Hi Scott --- take look at the following links:
http://www.duncanamps.com/tdsl/show.php?des=CV345 and
http://www.r-type.org/exhib/aai0167.htm
In the picture of the CV345 on the aai0167.htm page, there is a metal connector on the top of the tube which requires some sort of electrical signal.
The 6550/kt88/kt100/kt120 tubes do not have the topside connection.
So, the CV345 is not a drop in replacement for a VTA ST120 Amplifier. Also the other tube you mentioned, the 12e1 which is something like the CV345 is also not a kt88 replacement tube.
Hope this helps,
Stew
http://www.duncanamps.com/tdsl/show.php?des=CV345 and
http://www.r-type.org/exhib/aai0167.htm
In the picture of the CV345 on the aai0167.htm page, there is a metal connector on the top of the tube which requires some sort of electrical signal.
The 6550/kt88/kt100/kt120 tubes do not have the topside connection.
So, the CV345 is not a drop in replacement for a VTA ST120 Amplifier. Also the other tube you mentioned, the 12e1 which is something like the CV345 is also not a kt88 replacement tube.
Hope this helps,
Stew
stewdan- Posts : 231
Join date : 2010-03-07
Age : 85
Location : Houston Texas
- Post n°3
Re: GEC Ediswan cv345/12e1 power tube.... KT-88 eqivalent?
by stewdan Wed Jun 25, 2014 3:55 pm
Scott -- also, on the Duncanamps page for the CV345, there is no mention of the KT88, only the 12e1.
Stew
Stew
sKiZo- Posts : 1530
Join date : 2013-04-01
Location : Michigan USA
- Post n°4
Re: GEC Ediswan cv345/12e1 power tube.... KT-88 eqivalent?
by sKiZo Wed Jun 25, 2014 4:59 pm
Just for yuks ...
The KT88 anode is pin #3. That pin is "no connection" on the CV345.
So ...
Run a tail and anode cap from pin #3 on the KT120 socket to make the connection on the CV345?
Certainly be a conversation piece if you could get it to work ...
The KT88 anode is pin #3. That pin is "no connection" on the CV345.
So ...
Run a tail and anode cap from pin #3 on the KT120 socket to make the connection on the CV345?
Certainly be a conversation piece if you could get it to work ...
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