Sessionette 75 Service and a new Power Amp Board Installed

Original power amp board.. a few issues and proving difficult to service into working condition,,Original power amp board.. a few issues and proving difficult to service into working condition,,So out with it!So out with it!And a 120 Watt Class D amplifier installed more efficient and powerful.And a 120 Watt Class D amplifier installed more efficient and powerful.The ready made module fitted in well and uses the original Sessionette 75 power supplyThe ready made module fitted in well and uses the original Sessionette 75 power supplyAll back together for some testing...  worked but a bit of hum (and these can be 100% hum free...All back together for some testing… worked but a bit of hum (and these can be 100% hum free…Noticed one electrolytic needing replacement so changed all of themNoticed one electrolytic needing replacement so changed all of themSwitch photos so that I can resolder then after disconnecting to remove the pcbSwitch photos so that I can resolder then after disconnecting to remove the pcbDSC_9208Switches removedSwitches removedBoard out!Board out!Both main volume pots were very cackly and servisol did not cure them so I took them apart and cleaned them  by hand (seemed to have oil inside!)Both main volume pots were very cackly and servisol did not cure them so I took them apart and cleaned them by hand (seemed to have oil inside!)Resistive service cleaned up nicely!Resistive service cleaned up nicely!Took the cab apart to clean.Took the cab apart to clean.DSC_9158All cleaned up and a new Eminence Legend speaker installed (can handle the full 120 Watts(All cleaned up and a new Eminence Legend speaker installed (can handle the full 120 Watts(DSC_9159DSC_9162DSC_9215DSC_9240Caps all changed and the hum removed!Caps all changed and the hum removed!DSC_92442 tops were missing on some knobs I had some spare grey tops so I used them on the Gain knobs to help them stand out in gig situations2 tops were missing on some knobs I had some spare grey tops so I used them on the Gain knobs to help them stand out in gig situationsSounding good with my Telecaster and so so loud... (though it can be turned down)Sounding good with my Telecaster and so so loud… (though it can be turned down)DSC_9250Unit now for saleUnit now for sale Nice 1984 Sessionette in for repair. Well used crackly pots.. and the power amp board somewhat shot.. These amps are well designed great sounding 1×12 amps. Light but able to push out a big sound. Also interesting is the design. Solid state and with an over drive circuit after the tone stack! Diode overdrive. So serviced repaired crackly pots and put in a new power amp board. 120 Watt Class D power amp. Also new Eminence Legend speaker. After all this work she sounds great and should work for many years to come. It will make someone a real nice all in one combo!

5 thoughts on “Sessionette 75 Service and a new Power Amp Board Installed

  1. I’ve just seen this on ebay – looks excellent. I have one already, so won’t be able (i.e. allowed) to bid, but someone’s going to get a great amp.

    Any youtube videos?

    Cheers

    Howard (ex D&T teacher, too…)

    • I bought it from a supplier in China via ebay Sold in pairs. Cannot remember the exact supplier now… low cost but a good Class D product.

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