a photo of Jo's pedalboard, containing four dpFX builds. Can you spot all of them? 😉
#dpFX #dpFXpedals #pedalboard #boutiquepedals #custompedals #handpaintedpedals #pedalsandeffects #pedaleffects
Pete from Finland 🇫🇮 just received his OLETHROS preamp. He was so excited with its sound that sent me this photo. It's always nice to receive such photos from happy musicians that enjoy dpFX's creations 😃

#Olethrospreamp #betapreamp #betalead #dpFX #suomessa #dpeffects #boutiquepedals #pedalsandeffects #finland #betapreamp #preamp
Active 12x12 Matrix Mixer with DC-coupled inputs & outputs, so that it can be used for Audio and Control Voltage mixing. (detailed specs in first comment)
#matrixmixer #dpFX #handmadePedals #handpainted
Headphones amp for pedalboards & rehearsal (with mp3 AUX in).

This is a full stereo mixer with a headphones out. The standard input can be used to connect the signal from your pedalboard (stereo or mono) and the AUX-In can be used to connect a phone/mp3 player/sound card line out or other similar device.
Both inputs are mixed and routed to the headphones out to assist you on a “silent” rehearsal.

The device is also equipped with a TRS THRU output, this way whatever signal is routed to the input can also be picked up by any other device you’ll connect to the THRU output (like an amp, or another pedal) and it will remain unaffected because of the very high input impedance of the device’s buffer.

Internally a separate mixer circuit converts the Stereo Input signal to mono and routes it to the balanced XLR output.
The input volume control does not affect the level of the XLR out. The AUX-in signal does not output to the XLR.

- ST/M Toggle switch: allows you to select the type of signal (Stereo or Mono) that is being routed to the input. If you are working with a mono signal this toggle switch ensures that you will be hearing the same mono signal in both L+R channels of your headphones.

3 knobs:
- Input Volume knob
- AUX-IN volume knob
- Headphones-out volume knob

If any of the Input signals is too hot and causes distortion to your headphones just attenuate it from its respective volume knob.

**** Check photo section for a detailed signal flow chart ****

Technical specifications:
▹ Input impedance: 10Mohm
▹ THRU output impedance: equal to output impedance of the device you’ve connected to the input.
▹ XLR output impedance: 100ohm
▹ Circuit equipped with filters to avoid RF interference.
▹ Voltage Required: DC 9-12 Volt (12V will offer more headroom).
▹ Polarity: Negative tip
▹ Typical current draw: 40~200mA (depends on volume setting, and type of headphones)

#dpFXpedals #dpFX #dpeffects #headphonesamp #headphoneamp #headphonesampforpedalboards #boutiquepedals #pedalseffects #handmadepedals #pedalsandeffects #stereopedals #greekpedals #pedalbuilder #rehearsalgear #silentrehearsal
Θεριό" tube preamp (Therio). A modified Model-T 1st-gen amplifier, including the phase inverter and the NFL.
Additions:
- HI/LO gain switches for both channels
- Brite switch for the Normal channel
- Treble Bleed switch (3 positions) for the Normal channel
- Negative Feedback Loop selection switch (3 positions)

2 Outputs for power amps have been included. Each output has its own dedicated output level control.

The preamp is AC powered with either 230V or 120V (selectable through a switch on the back side).

custom built for @1000mods

(The galvanized steel angles shown in the photos were added for fixing the preamp on a rack shelf)

#dpFX #dpFXpedals #tubepreamp #modelT #sunnmodelt #sunnamps #sunnpreamp #tubeamp #tubeamplifier #12AX7 #boutiqueeffects #boutiqueamps #handmadeamps #handpainted #boutiquepedals #guitareffects #Therio #θεριό #θεριο #preamp
КТИΝОΣ tube preamp (ktinos). The circuit is the preamp of the Model-T 1st-gen amplifier including the phase inverter which is a crucial part of the original circuit and plays a significant role for gain, tone and presence control.

4 Outputs for power amps have been included, two for each output of the phase inverter (0 / 180). Each output has its own dedicated output level control.

The preamp is AC powered with either 230V or 120V, selectable through a switch on the back side.

#dpFX #dpFXpedals #tubepreamp #modelT #sunnmodelt #sunnamps #sunnpreamp #tubeamp #tubeamplifier #12AX7 #boutiqueeffects #boutiqueamps #handmadeamps #handpainted #boutiquepedals #guitareffects #ΚΤΗΝΟΣ #ktinos #preamp
Η Χάιδω περιεργάζεται το КТИΝОΣ...
#tubeamplifiers #tubepreamp #fedicats #dpFX