Laney Klipp100 modified

Laney Klipp100 amplifier after modification. The master volume pot was a mod already made. It now holds a switch for channel selection, a 6,3mm jack for remote channel switching and indicating leds for each channel.

Laney Klipp100 front panel
Laney klipp100 front

Back of the amplifier. Bias pot, bias measuring points , effects loop with send level pot and a gain switch.

Laney Klipp100 back panel
Laney Klipp100 back

Here’s an image with the channel switching circuit board installed using optocouplers .

Laney Klipp100 channel switching
Laney channel switching

A closer look at the gain switch mod and the effects loop.

Laney Klipp100 Gain switch
Laney gain switch

Here’s an image of the bias pot with measuring outlets and the transformer for the channel switching circuit,

Laney Klipp100 channel switching transformer
Laney klipp100 power

/Krister

Laney Klipp100 effects loop

Since the channel mod was made on the amp it saved a half 12AX7 preamp valve. Decided to use it as gain recovery stage and add an effects loop to the amp.

Effects loop Laney Klipp100
Effect loop Laney Klipp100

/Krister

Laney Klipp 100 service

I’ve starteed working on the Laney amp as mentioned in an earlier post found here. I had it recapped and with no tubes, slowly brought it up to main voltage. Here’s a picure of them new caps.

Laney Klipp100
Laney Klip 100

Here’s the preamp section.

Laney Klipp100
Laney Klipp 100

As it has fixed bias but not adjustable I added a bias pot and measure points accessible from the outside on the back of the amp as seen closer in this image. I’ve also installed new 1K screen resistors instead of the 470R :s.

Laney Klipp100
Laney Klipp 100

Here’s the back panel with the bias pot and the measure points.

Laney Klipp100
Laney Klipp 100

Time to power it up with tubes, I had the bias voltage set to -54VDC as in it’s original state. Checked with dummy load and scope and all voltages are in specs. Also changed a few resistors and the master volume pot installed before I recieved it.

Laney Klipp100

Now I just hope it plays as it should, well see.

/Krister

Laney Klipp 100

An old Laney amp that needs som tendering.

Laney Klipp100

Blows the main fuse. Tinkered with as it has a master volume pot installed and traces of other activites.

Laney Klipp100
Laney Klipp100

Components close up.

Laney Klipp100
Laney Klipp100
Laney Klipp100
Laney Klipp100

Checked the power transformer and it seems to be functional. I’ll start with recapping them old electrolytes.

/Krister