Tube Delay Pedal?

Dan0h

Dan0h

Well-known member
I have been digging and digging and only found a few, but has anyone done a tube Delay pedal?

Thinking of breaking my Proto board in with a Tube section preamp into a pt2399 circuit. This whole tube pedal thing has got me all fizzy again for making stuff.
 
yep ... not finding it, maybe never got to the finish line ... if you want a fully analog delay effect with no BBD chips you could convert a hammond mechanical vibrato ... add a tube preamp to drive it
 
ICTRock said:
yep ... not finding it, maybe never got to the finish line ... if you want a fully analog delay effect with no BBD chips you could convert a hammond mechanical vibrato ... add a tube preamp to drive it
Click to expand...
It’s at the bottom of madbeans page. It’s the mini tubes. Looks cool. Im not opposed to pt2399 chips for the delay, just thought it might be cool with a 12ax7 in place of the op amp.
 
Robert said:
You might want one of these then... although I'm not 100% sure about high voltage on a breadboard. :ROFLMAO:

(But @fig did it, so it has to be OK, right?)

View attachment 30642View attachment 30643
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Since one was fun, this will be twice as nice…I didn’t have another fancy breakout with tiny pads, so I made my own…sorta…It mimics your pinout so I don’t get confused anymore than I already am. I should have a tube amp with tone stack when I stick some stuff in there. (y)

Ye6aFo8.jpg
 
fig said:
Since one was fun, this will be twice as nice…I didn’t have another fancy breakout with tiny pads, so I made my own…sorta…It mimics your pinout so I don’t get confused anymore than I already am. I should have a tube amp with tone stack when I stick some stuff in there. (y)

Ye6aFo8.jpg
Click to expand...
Nopenopenopenopenopenope.
 
  • Haha
Reactions: fig
From my notes about Tube-based pedals:

DELAY


Magnetic Memory is the Tube Delay designed and manufactured by Brunetti in Modena, Italy. Hundreds of delay effect pedals are available on the market, each one with more or less similar characteristics. What seems to be less and less common nowadays is the research of the "harmonic" sound, intrinsically imperfect. Modern technologies use digital techniques to recreate an old analog sound. They give many possibilities, but they lack a specific "character". Magnetic Memory combines the digital management of the delay signal, made on purpose with a vintage concept, with a completely analog tube driven signal processing. We chose a specific tube, with a military/aeronautic origin, the mini 6111: it fits extremely well in a guitar pedal, thanks to its characteristics and mechanical sturdiness and stability.

The signal enters in the effect and splits: one part goes directly in the delay section, while the other part goes into the tube buffered amplified circuit. Both signals are mixed at the end of the chain and transferred to the output. We designed the delay circuit with different tones and EQ flavors. This is the purpose of the 4 position switch: select a different color of the delayed signal! At the same time, the dry signal will be harmonically enriched by the tube buffer, gaining warmth and smoothness. The TrueBypass/TubeBuffer function gives the opportunity to maintain a "buffered or not" dry signal in the effects chain. The buffered signal will strenghten the sound both for a pre-amp or effects loop use of the pedal.


Technical Specifications

True Bypass
Input impedance: >=500 KOhm
Output impedance: 25 KOhm
Max out level: 600 mV
Voltage supply: MAX 9Vdc WARNING!!! DO NOT EXCEED THIS VOLTAGE RATING
CH2 switching remote jack
WIMA MKP capacitors, made in Germany
Metal-film or carbon composition resistors depending on their function
SH multi-wiper potentiometers, aluminum wiper
Sealed low power golden relay
Current drawn: MAX 30 mA
Weight: 0.25 kg
Dimensions: 15 x 11 x 4 cm



DELAY
Magnetic Memory Tube Delay, uses 6111
Guyatone TD-X Tube Echo
EarthTone Rose - Tube Echo
DIY TUBE-TAPE DELAY?
 
Feral Feline said:
From my notes about Tube-based pedals:

DELAY


Magnetic Memory is the Tube Delay designed and manufactured by Brunetti in Modena, Italy. Hundreds of delay effect pedals are available on the market, each one with more or less similar characteristics. What seems to be less and less common nowadays is the research of the "harmonic" sound, intrinsically imperfect. Modern technologies use digital techniques to recreate an old analog sound. They give many possibilities, but they lack a specific "character". Magnetic Memory combines the digital management of the delay signal, made on purpose with a vintage concept, with a completely analog tube driven signal processing. We chose a specific tube, with a military/aeronautic origin, the mini 6111: it fits extremely well in a guitar pedal, thanks to its characteristics and mechanical sturdiness and stability.

The signal enters in the effect and splits: one part goes directly in the delay section, while the other part goes into the tube buffered amplified circuit. Both signals are mixed at the end of the chain and transferred to the output. We designed the delay circuit with different tones and EQ flavors. This is the purpose of the 4 position switch: select a different color of the delayed signal! At the same time, the dry signal will be harmonically enriched by the tube buffer, gaining warmth and smoothness. The TrueBypass/TubeBuffer function gives the opportunity to maintain a "buffered or not" dry signal in the effects chain. The buffered signal will strenghten the sound both for a pre-amp or effects loop use of the pedal.


Technical Specifications

True Bypass
Input impedance: >=500 KOhm
Output impedance: 25 KOhm
Max out level: 600 mV
Voltage supply: MAX 9Vdc WARNING!!! DO NOT EXCEED THIS VOLTAGE RATING
CH2 switching remote jack
WIMA MKP capacitors, made in Germany
Metal-film or carbon composition resistors depending on their function
SH multi-wiper potentiometers, aluminum wiper
Sealed low power golden relay
Current drawn: MAX 30 mA
Weight: 0.25 kg
Dimensions: 15 x 11 x 4 cm



DELAY
Magnetic Memory Tube Delay, uses 6111
Guyatone TD-X Tube Echo
EarthTone Rose - Tube Echo
DIY TUBE-TAPE DELAY?
Click to expand...
Yes!
 
Feral Feline said:
Current drawn: MAX 30 mA
Click to expand...
I'm not sure how that works. 6111 heater takes 300mA, but the whole pedal only pulls 30mA?

SiB made "Echodrive", a 12AX7 driven delay using a PT2395, which seems to be an older version of PT2399 if I understand correctly. I haven't tried one in person, but I've been eying the used ones as I've heard good things and frankly adding tubes to things that don't really need tubes is kind of my thing.

EDIT: I did a little more digging and apparently the red version of the Echodrive uses PT2395, and the blue version uses MN3005. Pretty neat.
 
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Oh man. @vigilante398 it might be a race to see who can wip one of these up faster. Lol. Fun experiment for sure. I’m going to play around with ideas on the bread board.
 
vigilante398 said:
I'm not sure how that works. 6111 heater takes 300mA, but the whole pedal only pulls 30mA?

SiB made "Echodrive", a 12AX7 driven delay using a PT2395, which seems to be an older version of PT2399 if I understand correctly. I haven't tried one in person, but I've been eying the used ones as I've heard good things and frankly adding tubes to things that don't really need tubes is kind of my thing.

EDIT: I did a little more digging and apparently the red version of the Echodrive uses PT2395, and the blue version uses MN3005. Pretty neat.
Click to expand...


Maybe I copied the info down wrong, but that should be verbatim. Been a long while I made that entry into my notes.


"...and frankly adding tubes to things that don't really need tubes is kind of my thing." — and what a glorious thing it is.

I built an entire pedalboard (on paper) of tube-based pedals:

Pre-amps, of course
Boosts
ODs
Dist
Fuzz
Compressors
Wah
EQ
Octave
Phaser
Chorus
Uni-vibe/Vibrato
Filter (Schmitzbits)
Tremolo
Delay
Reverb
Buffer
Other
ex Nixie Clock (to know when set breaks are imminent/over)​
​
MISSING — Tuner
And I'm a tuner-addict SO IT's VERY IMPORTANT THAT THE NIXIE-TUNA IS BIRTHED!
 
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