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FS: Sale on audio equipment, parts, PCBs

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mravlca

mravlca

Member
Joined 2009
Hi guys,

I'm selling most of the stuff I have. In next couple of days I'll be posting more. Anyone interested drop me a PM.

First I have for sale dual mono LM3886 amplifiers. PSUs are built around IRM-60-24, quality parts used, in small Hammond enclosure.
Price 350€, shipped to EU, paypal payment.
 

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mravlca

mravlca

Member
Joined 2009
Low noise DAC power supply

Next item is LDO power supply for DAC, built on open aluminum frame. LDOs are TPS7A4700, my OLDO design, so they can be swapped with any other LDO. Output voltages are +/-5V, +/-12V and 3.3V, easy to reconfigure but it may be limited by transformer output voltages. I used it for XMOS dac with PCM1704 from diyinhk. I will also add another blank aluminum plate.
Price 230€, shipped to EU, paypal payment.
 

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mravlca

mravlca

Member
Joined 2009
LNHPA headphone amplifier

Low noise headphone amplifier, Dual mono design, though ground is still connected at volume pot. TPS7A4700 & TPS7A3301 are voltage regulators, LME49600 buffers, MUSES8920 are opamps. It is dead silent on most of headphones except on IEMs who have really low impedance, audiable when there in no music. It can drive all headphone really well, with lot of control. LED on the switch is well dimmed so it does not disturb.

Price 250€, shipped to EU, paypal payment.
 

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mravlca

mravlca

Member
Joined 2009
LT1083 power supply

LT1083 power supply. It can easily drive most of chipamps. Output voltage can be configured up to 30V, capacitors are rated for 35V DC. Two LEDs in feedback for lowering noise, but they limit output voltage to minimum of 5V DC. If they are shorted voltage can be set lower.

Price 40€, shipped to EU, paypal payment.
 

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mravlca

mravlca

Member
Joined 2009
TPS7Axxxx symmetrical power supply

I have 7pcs of these available. Positive regulator is TPS7A4700 and negative is TPS7A3301. AC/DC transformer is Meanwell IRM-10-12 (you need to add two). PCBs have fixed output and it is set to +/-11V, which is more than enough for most headphone amps, premplifiers etc. Small form factor 100mmx54mm.

Price for one is 35€ shipped to EU, paypal payment.
 

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mravlca

mravlca

Member
Joined 2009
LT3045 3A

LT3045 3A output power supply. PCB with SMD components only, I will add set resistor as I have a lot of them.

Price 50€ shipped to EU, paypal payment.
 

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mravlca

mravlca

Member
Joined 2009
PCB Power supply bundle

Bundle of various PSU PCBs:
1x Meanwell IRM-60 PCB, suitable for chipamps or class D amps
3x LT3045 3A PCB
1x OLDO LT3045 1A PCB
1x OLDO TPS7A4700 PCB
8x LT3045 3pin regulator style PCB

10 of these sets available.
Price for one set is 12€ shipped worldwide, paypal payment.


Stay tuned for more, I need to make a list of all electronic components that I have.
 

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S

silasmellor

Member
Joined 2016
mravlca said:
LT1083 power supply. It can easily drive most of chipamps. Output voltage can be configured up to 30V, capacitors are rated for 35V DC. Two LEDs in feedback for lowering noise, but they limit output voltage to minimum of 5V DC. If they are shorted voltage can be set lower.

Price 40€, shipped to EU, paypal payment.
Click to expand...

Is that for the pair? I am interested...
 
mravlca

mravlca

Member
Joined 2009
mravlca said:
Hi guys,

I'm selling most of the stuff I have. In next couple of days I'll be posting more. Anyone interested drop me a PM.

First I have for sale dual mono LM3886 amplifiers. PSUs are built around IRM-60-24, quality parts used, in small Hammond enclosure.
Price 350€, shipped to EU, paypal payment.
Click to expand...

New price 280€! (Shipping and paypal fee are included)

Regards,
Aleš
 
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