whats the deal with Kt66 tubes in Dynaco's??

[faster100]

I read that you can use Kt66's in place of the el-34's in the St 70
Is this true, i also read the Kt77's could be used also.. The manual says differect tubes that can be used in place of also... anybody try this? good bad, indifferent?? wanna know

[madmax]

The KT series tubes look cool because they are a lot bigger and they have a few extra watts. To me they don't sound as good as the EL-34's. Not a lot of tube magic.
madmax

[faster100]

Oh ok, So if i find any local cheap (i havent) then i still could grab em.. I noticed the Heathkit amps take these

[madmax]

When you change from EL34 to KT or vice versa (I forget which way) you have to add a resistor some where too.
madmax

[organ]

I remember reading something about this. Like Madmax said, you need add a resistor somewhere. A lot of people like the EL34 for its "romantic" sound. The amp was designed for EL34/6CA7 output tubes. I think modding it for KT tubes could change the specs in certain areas.

You should order a new pair of NOS 7119 when you get the chance. NOS are becoming rare. The price of the JAN 7199 jumped $7 since I got mine. Mullard 5AR4 are going up in price as well. I'll have to order spares. This disease is killing me.

Maurice

[madmax]

Anything you can buy now you should. NOS Tubes overall have gone way up since I got into it a few years.
madmax