The guitar is a Tanglewood Odyssey cut-away. It is a "bowlback" design with a fibreglass back - I bought the guitar back in 1992, so it has done good service, but replacing the whole guitar is an expensive proposition. So I started reading-up about under-saddle pickups on the internet. The name ARTEC kept coming up, and their pickups looked very similar to what was fitted to my guitar.
I was particularly attracted to the SF-607 model because of this phrase " It reduces buzzing sound caused by curved bottom of saddle or rough surface of pickup cavity on the bridge of guitar. " - I suspect this may be the "buzzing sound" that I have been hearing, or else the pickup has developed a fault. Unfortunately the Solidflex pickups are not at widely available on E-bay as the PP and PG versions, but I found one in Singapore for about £12 and made the purchase.
The 2.5mm plug means that there is no soldering of wires - and the preamp and EQ unit in the guitar seems to work just fine with the new pickup. Here are a few more pictures:
It is a useful opportunity to clear the dust out of the inside of the guitar - it had got decidedly mucky in there!
I couldn't photograph that operation because I needed at least three hands to hold the EQ unit, front panel, guitar, screw and screwdriver - I didn't have any appendages left with which to operate the camera.
So does it work?
Yes it does, but it is different to the old pickup. The output is lower and there is a bigger variation in output between the individual strings. The A and D strings are louder than the others.
Here is an image of the six strings plucked one after the other and recorded in Audacity, first with the old pickup:
You can see the distortion on the "A" string, as the envelope looks "broken".
The output is lower, overall, but the A string and D string are strongest. I estimate the top E to be about 6dB down, but the A string seems to be as strong as the old pickup. The good thing is that the output is clean and distortion-free. So I shall leave the new pickup in place for the time being and see how we get on with it. I will have to crank the volume up on the amplifier a bit to compensate for the lack of output.