Step 23
– If all these measurements are within specifications,
and the speaker is connected, and with no signal source
connected to either input, turn up the volume control and listen
for a low level hiss from the speaker. There will be a slight hum, but anything drastic indicates
wiring troubles.
Step 24
– If the above hiss is heard, turn the volume control back to minimum and connect a
signal source into input 1.
Step 25
– Turn up the volume on the amp and the signal source (most likely a guitar or
harmonica microphone) and verify that the signal is coming from the speaker.
Step 26
– If everything checks good, turn off amp and install the back panel.
Step 27
– Now the time has come to rock out … your amp is done!
End
Well … almost done. If your amp when played at high volumes squeals and acts rascally and
unstable, try moving the wires around that connect between input jacks and the PC board; the
PC board and the tube sockets; the tube sockets and the front panel controls. Move these
wires back and forth until you find a spot where the squealing stops. Usually just a slight
readjustment of wire routing is all that is needed to get the amp stable.
22 TubeDepot.com
A signal source can be a guitar or high impedance microphone or even a low level CD or
MP3 player. A speaker output from another amp is not recommended.
NOTE
Summary of Contents for Tweed 5F1
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