Laney Archives - Zeta Sound

June 1, 2020June 1, 2020

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

April 5, 2020April 5, 2020

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

March 11, 2020March 11, 2020

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.

Here’s the preamp section.

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.

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

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.