goingdownslow

The barrel jack is plugged into a socket on the vol control and is easily removable. Undoing the nut is still a pita though.

Decided I couldn't live with it and ordered a replacement from Warwick. MEC 60003. I noticed that the EQ module with stacked pots was available on it's own, M 60904, but it was not much more for the complete set. Whilst the cavity was empty I decided to line it with copper tape as I had a coil to hand that was for model railway purposes. As the Thumb Bass has a separate battery compartment and the the new control harness has it's own battery clip that I did not want to snip off, I soldered another PP3 clip to the original wiring, observing polarity. Note that in the second picture I have re-done the connections to the barrel jack, they looked a bit flimsy, and put heatshrink on. The service from Warwick was quick, ordered on Thursday arrived Monday. Total cost £141.60

Having received the new electronics for my Thumb bass I began removing the knobs. The push/pull knob had a spring underneath which I was expecting, but I didn't notice that one of the other pots also had a spring until turning the bass over and it dropped off. Any idea which pot shaft it came from, or why the balance or the stacked T&B knob would have had a spring?

I have just ordered the 60003 set up for my 1990 Thumb Bass which has just started to make a 'static type powering up sound' for a couple of seconds after plugging the jack in. The tone module is the same as in your picture. The original spec of mine was... bass @ 100 Hz and treble @ 2.5 kHz, so I am hoping the new one to sound the same.

Barrel jack appears to be ok. Left it plugged in for 30 mins and it still does it when reinserting the jack. Disconnecting and reconnecting the battery whilst the jack is in has the same effect. Doesn't do it in passive mode. Once it has powered up it is quiet and functions as it should, so I will live with it.

Haven't used my '90 Thumb Bass for a while and when trying it today, when I inserted the jack plug there was a static type electrical noise, like something being turned on, it lasts two to three seconds and then all is fine. It will do it again after removing and re-inserting the plug. It never used to do this and my other Thumb Bass, a '91, doesn't do it. A new battery doesn't help.

Tried that to no effect. However, when used with another pre-amp plugged in to the power amp the Ampeg volume pot is not in circuit.

I have a fault on my SVT 3pro that is similar to what you would get with dirty in/out sockets. I have cleaned the contacts on the sockets thoroughly, even tried linking them with a patch lead but to no avail. I know it is on the power amp section as I have tried different pre/power amp permutations. It does not always do it and it seems to do it more on low volume. A quick flick of the volume control up and down cures it for a while. It is not the bias. There is one more set of contacts, and I have had a problem with this on a hifi amp which was cured by cleaning, and that is the speaker relay. Has anyone had this problem with a speaker relay? It looks a bit fiddly to get at and pop the cover off but I will attempt it If I can't locate the problem elsewhere.

This was my band, Wildlife, circa 1975. The backing was recorded in a two track studio which later became Amazon Studios, and the vocals overdubbed on a Philips tape recorder in a bedsit.

Some years back rechargeable PP3s were only 7.2 volts, then they became 8.4 volts and then 9.6 volt. Each time the capacity becoming less as they were trying to cram more 1.2v cells into the same size battery. These Lithium-ion batteries do measure 9+ volts but I doubt the 1200mA.

I bought some of the Pujimax ones after reading this thread. They didn't last 2 months in my Thumb Bass, used in the house for about an hour or so a week. The spare that was fully charged at the same time was also flat. I put back the Duracell that was installed in June 2019 ( I always write the date on) and that still worked.

I had to reverse the one-way rod in my '91 Thumb bass to give it some forward relief.

I wonder what the €25.00 option is?

I sold these two Les Paul basses in 1980 ish thinking I would not play again. I wasted the money on CB radios. Ten years later when I started playing again I regretted what I had done. I still have the EB3.

I can still remember the HMV radiogram with my dad's collection of Humphrey Lyttleton 78s, and also some favourites of mine, 'Take Me For A Buggy Ride' by George Melly and Mick Mulligans Magnolia Jazz Band, and 'The Old Music Master' by Hoagy Carmichael. Before my dad passed away (2004) I had bought him a set of Humphrey Lyttleton cds which I now have and often listen to and bring back those happy memories of our tiny terraced house in the '50s. My Dad played the accordion and was gigging from the age of 14 to his 80s. This was sometime after the war with Danny Black's Rhythm Boys.