Amp tuning

[Fino]

How do you tune amp with just one tuning knob? Is it still for max peak then back off a little?

 

[Robb]

More details please...
What make/model of amp?
What tubes does it use?
You know - details about the amp would help...

 

[Fino]

Looks like a mini scout, has just one knob on back. Tube is 8417.

 

[Captain Kilowatt]

Tune for max output and cross your fingers.

 

[mackmobile43]

Would be nice to know the amount of drive it takes before you tune.

 

[hookedon6]

Looks like a mini scout, has just one knob on back. Tube is 8417.

the search function is your friend: Question about a little Scout I just bought

is this it?

 

[Fino]

Looks like this, the bottom pic. I don't get the 6 or 7 watt input someone suggested in that thread I was going to use 3 at most. SOS Electronics Mini Scout

 

[Fino]

Tune for max output and cross your fingers.

Peak or deadkey?

 

[fnkycoldmedina]

if it only has 1- 8417 tube in it ,then that screw is your deadkey adjustment .it is setup like a modulator .

in other words you dont "tune" it .you just adjust your deadkey out the amp and let it swing .

all single 8417 tubes i ran i would set it for 30 watts deadkey out the amp and let it swing .should swing over a hundred depending on input .
you can run 4 watts in safely,then adjust the screw for 30-40 watts deadkey and let her rip.

same setup like a jb150

 

[Fino]

if it only has 1- 8417 tube in it ,then that screw is your deadkey adjustment .it is setup like a modulator .

in other words you dont "tune" it .you just adjust your deadkey out the amp and let it swing .

all single 8417 tubes i ran i would set it for 30 watts deadkey out the amp and let it swing .should swing over a hundred depending on input .
you can run 4 watts in safely,then adjust the screw for 30-40 watts deadkey and let her rip.

same setup like a jb150

Mine doesn't have the screw just one knob.

 

[Fino]

After looking at pic in this thread again I see it just has screw, when I looked before thought it had knob and screw. Mine has knob where that screw is. So I'll adjust it to 30 DK and see if it swings. Thanks Fnkycoldnedina http://www.worldwidedx.com/amplifiers/32974-tube-amp-adjustment.html

 

[fnkycoldmedina]

your welcome

a single final radio should swing it to 100 peak ..a dual final radio can swing a 8417 close to 150 peak .depends on your meter too.they all vary a tad .

enjoy

 

[Captain Kilowatt]

Peak or deadkey?

Take your pick. Max output is max output when you are tuning it. BTW it's ALWAYS easier to tune using a dead key and not watching a meter bouncing around due to modulation.