• TalkBass has been independent since 1998. Add your voice.
    Create a free account to reply to discussions, view embedded media, and browse with fewer display ads.
    Join freeLog in
    Want zero display ads or expanded classifieds tools? Compare plans.

Thunderbird Club

I ordered:

Tocos Cosmos 10% 500k pots for the volumes, Tocos Cosmos 250k audio for tone.

I have a collection of .022, .047, .052, and .1 caps to try out.

I use TOCOS COSMOS Japanese made pots whenever possible:
Tight (10% tolerance, have a smooth turning resistance that feels really nice, 6mm solid shafts)
Really well made, high performance pots:
View attachment 7216337

The barrel jack seems fine at the moment.

Ordered these knobs:
View attachment 7216313
Going to go with “60’s “ tone wiring scheme I’ve used in a jazz bass to good effect in the past.
Key takeaway is that the tone taper is smoother, with less signal loss AND BETTER SIGNAL TO NOISE RATIO!!!
View attachment 7216329

Classic '60s Wiring​

As you can see in Image 1 (middle diagram), in this configuration, the tone cap is still connected to the input of the volume pot, but on the tone pot the middle lug is now connected to ground. Electrically, the '60s wiring is completely identical to the modern wiring with the same tone, behavior, and problems. But there is one significant difference: In terms of shielding, the '60s wiring is superior to the modern wiring scheme. When electromagnetic interferences enter a guitar, they will also stray into the tone pot's unused pin and therefore into the middle lug (the wiper) in both wirings.

With the wiper connected to ground, as in the '60s wiring, the interferences will stop at this point. But with the tone cap connected to the middle lug, like in the modern wiring, electromagnetic interferences will find their way through the cap and carry on.
So, compared to the modern wiring, the signal-to-noise ratio in the '60s wiring is superior.

This is technical knowledge from yesteryear: The wiper of a variable resistor is connected to the low resistance part of the circuit. This knowledge was really important when designing and building tube amps, radios, and televisions, but is almost forgotten today.
So why did Gibson switch from the '60s to the modern wiring? My personal theory is that this allowed them to use pre-configured pots for both volume and tone, with the same third lug soldered to the case as the grounding point. I don't know if this is true, but if you know the reason or have another theory, please share it.

*** credit : Mod Garage: Three Ways to Wire a Tone Pot
We really hit the jackpot with several new members recently. Glad you are part of the community here.
 
We really hit the jackpot with several new members recently. Glad you are part of the community here.
Thank you!

I try and share what I’ve picked up along the way: some of it from my years at G&L, this forum, elsewhere on the ‘net, and my own Jackery:)


I was tempted to add a push pull pot for series / parallel but TOCOS doesn’t make one that I can locate. Don’t want to drill a hole for a mini toggle either.
 
Last edited:
now you got me thinking about the days when you jumped on one of these....
1746149773293.jpeg

hopped around some islands and ended up here days later......
IMG_4104.jpeg
 
Had a certified letter sent to my house the other day. I was home and all the carrier did was throw a tag in the mail box saying they would try to deliver the next day...it's been 4. I know what it is, so won't waste petrol trying to retrieve it.
A while back, I was expecting a bass (either the VP or Mark’s Greco, iirc). The doorbell rang while I was on the toilet. By the time I got to the door, there was just a note from FedEx. I knew the route they had to be taking so I hopped in the car and caught them 3/4 miles away. I honked and flagged them down, showed her the hanger and my ID, and took my new bass home.

Most of my FedEx, UPS, and USPS experiences have been positive apart from one lazy mailman (gone now).
 
pretty awesome...totally dig how they use Vegas as a test/showcase location, 1.5MW is nothing to sneer at, did that include the lighting? gotta admit, have not looked at your website but would imagine DSP and other digital audio type devices? sound at the Kravitz show at the MGM (Dolby) was probably I ever heard in an indoor arena....
 
pretty awesome...totally dig how they use Vegas as a test/showcase location, 1.5MW is nothing to sneer at, did that include the lighting? gotta admit, have not looked at your website but would imagine DSP and other digital audio type devices? sound at the Kravitz show at the MGM (Dolby) was probably I ever heard in an indoor arena....
No, this group was only dealing with the sound.
We do analog and digital. DSP, ADC, DAC, amplifiers, most areas of sound in phones, tablets, computers, headphones, etc. Branching out into batteries, camera control, haptics, and lots more.