Good afternoon.
Do you remember such a usual case: you often need any very necessary for a most kings of audio projects, such as PSU, level indicator, tube stage, special prototype board etc.
Recently I've got delivered from the factory the set of PCBs, which I designed.
A few exapmes of using (the end of thread) and new modifications
I've done these as much as possible universal: PCBs have mask, serigraphy labels of control points, input/output, king and markers of elements, name and purpose of PCB. Most part of boards has a prototyping area to install extra elements for extending capabilities of circuit.
I've done them for my DIY to save my time. But I am ready to sell surplus of these to you.
List with pictures of PCB layout and price is below.
Price does not include shipping. Please, write to me there or PM or e-mail - number and counry, I'll calculate price of shipping. Shipping from Russia is pretty cheap! )
[*]Simple 2 bridge rectifier - 1 euro
[*]Universal PSU with voltage regulator LM78** series (may set voltage 5, 6, 9, 12, 15В...) - 1 euro
[*]Prototype board for OpAmps in DIP8 - 2 euro
[*]Prototype board for OpAmps in DIP8 with 2-polar PSU - 2 euro
[*]Power supply +48V with diode voltage multiplier to be used with condencer mics (read article in my blog) - 2 euro
[*]SRPP tube stage with rectifieng voltage for heating; tube king 12AX7 - 1.5 euro
[*]Two SRPP stages for 12AX7 + prototyping area - for stereo or serial - 2.5 euro
[*]Universal bipolar PSU with voltage regulator LM78** и LM79** (for voltages ±5, ±6, ±9, ±12, ±15В...) - 1.5 euro
[*]Power supply for high anode voltage 100V - 350V with electronic filter - 3 euro
[*]Whole amplifier (modified like in
this article) like Millenium with PSU and relay speaker protection uPC1237HA; especiality - heatsink from CPU mounts on the board - 5 euro
[*]Mic preamp PSU ±15В, +48В - 3 euro
[*]Speaker protect circuit with uPC1237HA - 1 euro
[*]LED level indicator with LM3915N-1/NOPB - 1 euro
PCB does not include elements! Board only! Not assembled!
Do you remember such a usual case: you often need any very necessary for a most kings of audio projects, such as PSU, level indicator, tube stage, special prototype board etc.
Recently I've got delivered from the factory the set of PCBs, which I designed.
A few exapmes of using (the end of thread) and new modifications
I've done these as much as possible universal: PCBs have mask, serigraphy labels of control points, input/output, king and markers of elements, name and purpose of PCB. Most part of boards has a prototyping area to install extra elements for extending capabilities of circuit.
I've done them for my DIY to save my time. But I am ready to sell surplus of these to you.
List with pictures of PCB layout and price is below.
Price does not include shipping. Please, write to me there or PM or e-mail - number and counry, I'll calculate price of shipping. Shipping from Russia is pretty cheap! )
[*]Simple 2 bridge rectifier - 1 euro
[*]Universal PSU with voltage regulator LM78** series (may set voltage 5, 6, 9, 12, 15В...) - 1 euro
[*]Prototype board for OpAmps in DIP8 - 2 euro
[*]Prototype board for OpAmps in DIP8 with 2-polar PSU - 2 euro
[*]Power supply +48V with diode voltage multiplier to be used with condencer mics (read article in my blog) - 2 euro
[*]SRPP tube stage with rectifieng voltage for heating; tube king 12AX7 - 1.5 euro
[*]Two SRPP stages for 12AX7 + prototyping area - for stereo or serial - 2.5 euro
[*]Universal bipolar PSU with voltage regulator LM78** и LM79** (for voltages ±5, ±6, ±9, ±12, ±15В...) - 1.5 euro
[*]Power supply for high anode voltage 100V - 350V with electronic filter - 3 euro
[*]Whole amplifier (modified like in
this article) like Millenium with PSU and relay speaker protection uPC1237HA; especiality - heatsink from CPU mounts on the board - 5 euro
[*]Mic preamp PSU ±15В, +48В - 3 euro
[*]Speaker protect circuit with uPC1237HA - 1 euro
[*]LED level indicator with LM3915N-1/NOPB - 1 euro
PCB does not include elements! Board only! Not assembled!
Last edited:
What do you mean for single sheet? Whole sheet of all boards?
I afraid a big sheet is divided into parts.
Maybe you'd better choose constructions which you prefer? Shipping to US will be up to 7 euro. 5 euro average. When you'll tell me number - i will calculate price of shipping (depends of weight).
I afraid a big sheet is divided into parts.
Maybe you'd better choose constructions which you prefer? Shipping to US will be up to 7 euro. 5 euro average. When you'll tell me number - i will calculate price of shipping (depends of weight).
Update!!!
New PCBs
New order of PCBs! New, modifyed constructions.
High Voltage stabilizer (Anode PSU) - compact version
48V (Phantom Power) PSU
High Voltage stabilizer (Anode PSU) - whole version
Two 7pin pentode (like 6as6, 6Ж1П) stages
Two SRPP stages on one PCB with transformer output (prototype area for different transformers)
High power regulator/PSU: LM317 and power transistor for high power output
One SRPP stages on one PCB with transformer output (prototype area for different transformers)
New PCBs
New order of PCBs! New, modifyed constructions.
High Voltage stabilizer (Anode PSU) - compact version
48V (Phantom Power) PSU
High Voltage stabilizer (Anode PSU) - whole version
Two 7pin pentode (like 6as6, 6Ж1П) stages
Two SRPP stages on one PCB with transformer output (prototype area for different transformers)
High power regulator/PSU: LM317 and power transistor for high power output
One SRPP stages on one PCB with transformer output (prototype area for different transformers)
Good afternoon.
I am going to show you a few examples of using of some my constructions.
1. Two SRPP stages on one PCB + High Voltage stabilizer (Anode PSU) + input and output transformers and gain regulators = Micrpohone tube preamp with overdrive.
2. Two SRPP stages on one PCB with transformer output (prototype area for different transformers) x2 + High Voltage stabilizer (Anode PSU) - whole version + 48V (Phantom Power) PSU + BEAG input transformers = 4 channel recording microphone preamp.
3. One SRPP stages on one PCB with transformer output (prototype area for different transformers) + 48V (Phantom Power) PSU (used as anode power supply - converts 12V to 48V for anode! to use external compact adapter 12V AC) = Compact tube di-box (transformer output)
Use our PCBs, and you could do better!
I am going to show you a few examples of using of some my constructions.
1. Two SRPP stages on one PCB + High Voltage stabilizer (Anode PSU) + input and output transformers and gain regulators = Micrpohone tube preamp with overdrive.
2. Two SRPP stages on one PCB with transformer output (prototype area for different transformers) x2 + High Voltage stabilizer (Anode PSU) - whole version + 48V (Phantom Power) PSU + BEAG input transformers = 4 channel recording microphone preamp.
3. One SRPP stages on one PCB with transformer output (prototype area for different transformers) + 48V (Phantom Power) PSU (used as anode power supply - converts 12V to 48V for anode! to use external compact adapter 12V AC) = Compact tube di-box (transformer output)
Use our PCBs, and you could do better!