DVM's Zonkin Yellow Screamer pedal

[SuperSwede]

I got to see one today! I stopped by Spud's for a short visit between games while we were in his town for the kids' soccer tourney. Didn't get a chance to hear it in person though. Will have to make a follow up trip. It looked SO cool there in person. Nice job on the cosmetics DVM!

Saw some really cool guitars too! So many different tones just playing around with them acoustically. I picked out one or two I especially liked in the short time we had for playing around. Steve, thanks for letting us drop over!

You´ve been at the Spudmaster Holy Church of Guitars? You lucky man! I hope that you brought your camera!

[sunvalleylaw]

You´ve been at the Spudmaster Holy Church of Guitars? You lucky man! I hope that you brought your camera!

Only scratched the bare surface my man, and no, security did not allow me to bring in my camera.

[ShortBuSX]

Which opamp do you guys prefer the most?

Im on my third one so far...I used the 808 that came with mine, then I swapped it out for the TI RC4559P and then to what Im currently using, the "boutique" opamp(which has been in longest so far)....but so far I liked the RC4559P most. Its alot like the 808 opamp but less "chingy" sounding to me. Hope this makes some sense to someone.

I guess its time for me to try out the others now.

[Robert****]

I just installed the RP4558P and I like it. It seems to make bigger tonal difference between the different rotary switch position, compared to the stock opamp. It's also more smooth sounding, the RP4558P.

[ShortBuSX]

TI RC4558P is the opamp that Im currently using, that Id previously refered to as the boutique...my observations with this one is that its more of a plain ol boost, doesnt seem to add much crunch or grit...just boost.

For some reason I thought I had 2 more to try, guess its the TI TL072 next...I'll probably install it later this afternoon.

[duhvoodooman***]

I just installed the RP4558P and I like it. It seems to make bigger tonal difference between the different rotary switch position, compared to the stock opamp. It's also more smooth sounding, the RP4558P.

Yeah, that's a good one. The RP4558P is the opamp that Robert Keeley uses in his upgraded TS models, the best known probably being his "baked TS-9" mod. Until I obtained the TI TLC2272ACP, the RP4558P and it's "1st cuz", the RP4559P were pretty much a toss-up as my favorite TS opamps. I like their smoothness, too, Robert.

Will be interested to see what you think of the LM833N....

[Robert****]

DVM, I also thought it seemed like there with was less of a volume change when you set dip switch to "Hot" with the RP4558P, did you notice this?

[duhvoodooman***]

DVM, I also thought it seemed like there with was less of a volume change when you set dip switch to "Hot" with the RP4558P, did you notice this?

No, but that doesn't mean you aren't right! I'll have to check it out next time I'm swapping opamps around and see if I get that effect, too.

[Robert****]

You know what would be cool? If you could somehow move between the rotary switch positions as you play! I am always turning back and forth to see what tone I get - I would love to be able to do that live! Maybe if the knob head was really big, it could be turned with the foot?

[duhvoodooman***]

You know what would be cool? If you could somehow move between the rotary switch positions as you play! I am always turning back and forth to see what tone I get - I would love to be able to do that live! Maybe if the knob head was really big, it could be turned with the foot?

Oh-oh! New product concept coming through! The "ZYS Expresso", now with a bass rolloff expression pedal! I think that's probably beyond my meager skills, though.

Seriously, maybe something could be done with the knob head. I'll have to think about that....

[Spudman***]

MXR makes those rubber knob covers so that you can change position with your feet. With the indent switch it might be tough. Same knob size though.

[Tone2TheBone]

I'm digging the Texas Instruments 4558 in mine. It seems more high fidelity to me. I can't get over the amount of gain the Zonkin' produces. My favorite position is normal on the mini toggle and I'm usually on the upper end of choices on the gain/bass boost. Positions 4 and 5 mostly.

[duhvoodooman***]

In relative numbers, the max. gain for a stock TS-808 is 118. The ZYS max. gain is 110 on the "normal" gain settings (rotary positions 1 - 3), and 511 on the high gain settings (positions 4 - 6). That's 4.3 times as much available gain as the stock 808.

[Tone2TheBone]

In relative numbers, the max. gain for a stock TS-808 is 118. The ZYS max. gain is 110 on the "normal" gain settings (rotary positions 1 - 3), and 511 on the high gain settings (positions 4 - 6). That's 4.3 times as much available gain as the stock 808.

Oh yeah it's awesome. I remember asking you to make mine better than the BM and well yeah it blew it out of the water in terms of hifi tone and gain.

[ShortBuSX]

In relative numbers, the max. gain for a stock TS-808 is 118. The ZYS max. gain is 110 on the "normal" gain settings (rotary positions 1 - 3), and 511 on the high gain settings (positions 4 - 6). That's 4.3 times as much available gain as the stock 808.

What about the Banshee...I dont have that option, huh?

[duhvoodooman***]

What about the Banshee...I dont have that option, huh?

Nope. You've got 118, period. Same as the TS-808.

[Tone2TheBone]

Yeah, that's a good one. The RP4558P is the opamp that Robert Keeley uses in his upgraded TS models, the best known probably being his "baked TS-9" mod. Until I obtained the TI TLC2272ACP, the RP4558P and it's "1st cuz", the RP4559P were pretty much a toss-up as my favorite TS opamps. I like their smoothness, too, Robert.

Will be interested to see what you think of the LM833N....

The Texas Instrument opamp I'm using right now IS THIS chip right? It's in my pedal now so I can't see it. Tell us here what benefits the LM833N would offer?

[duhvoodooman***]

The Texas Instrument opamp I'm using right now IS THIS chip right? It's in my pedal now so I can't see it. Tell us here what benefits the LM833N would offer?

Not unless you bought it yourself. I didn't find the TLC2272ACP until after I bought the opamps for the four ZYS production run.

The four opamps that each of you received were:

• JRC4558D (original spec TS-808 chip)
• TI RC4558P (used in several boutique TS clones)
• TI TL072IP (very popular TI opamp)
• STM LM833N (low noise)

As indicated, the LM833N is a low noise opamp that is particularly suited to high gain applications. So when you crank the gain/bass rotary over to positions 4, 5 & 6, it should reduce some of the background noise and maintain note clarity a bit better.

[Tone2TheBone]

Not unless you bought it yourself. I didn't find the TLC2272ACP until after I bought the opamps for the four ZYS production run.

The four opamps that each of you received were:

• JRC4558D (original spec TS-808 chip)
• TI RC4558P (used in several boutique TS clones)
• TI TL072IP (very popular TI opamp)
• STM LM833N (low noise)

As indicated, the LM833N is a low noise opamp that is particularly suited to high gain applications. So when you crank the gain/bass rotary over to positions 4, 5 & 6, it should reduce some of the background noise and maintain note clarity a bit better.

Well then where did Robert get RP from! Did he typo or did he buy one?