Selling a kit for the PPAv2 headphone amplifier. It's a high end transparent headphone amp that will drive a number of headphones really well, save for the most inefficient, ie AKG K1000.
This is the version with the battery board and charging circuit.
Everything is there save for a few odds and ends (nothing more than ~ $25). There is close to $300 in parts. A list is detailed below as well as pictures.
Asking price is $155 plus shipping. It's all packed up securely.
Parts list:
1 amplifier PCB board
1 battery board PCB
2 RK27 volume control
2 RCA audio jacks
6 2AAA battery holders (2468)
12 AAA 650 mAh Sanyo metal hydride rechargeable batteries
1 1/4" Neutrik locking headphone jack
1 battery management ic (MC33340PG)
1 LM317T/NOPB (ic reg positive adj TO-220)
3 TLE2426CLP TI semiconductor (Voltage & Current References 1/2Railvtl Gnd)
9 2N5087_J18Z bipolar PNP transistor small signal
2 TI TLE2426CLP IC 1/2 RAIL VIRTUAL GND TO-92
3 MJE243G TRANS PWR NPN 4A 100V TO225AA
3 2N5484 fairchild jfets
9 PN4392_D26Z N Channel switch jfets fairchild
3 MJE253GOS-ND PNP power transistor
9 2N5486 RF jfet fairchild
3 BD140 bipolar audio amp transistor
3 BD139 NPN bipolar transistor STMicroelectronics
1 1N5314 4.7 mA current regulator diode
1 Vishay 1N5234B-TR zener diode 6.2v .5w
10 Vishay metal film caps 1uf 63 vdc 10%
3 bourns trimpots 2.0k ohm 3/8"
3 bourns trimpots 2k ohm 3/8"
1 1N4001-B rectifier 50v/1a
6 Vishay metal film resistors 2w 3.3 ohm 5%
3 AD825AR opamps
6 Nichicon 220 uf 25v electrolitic cap
5 0.1uf 250v 5% Vishay metalized polyester film cap
1 10 pf 500v +/-0.5 pf CDE mica radial lead cap
1 100 pf 500v +/-0.5% CDE mica radial lead cap
1 TO-220 .500" heatsink (pn HS107 or 577202B00000G)
3 3P molex header
15 molex crimp term reel housing
4 8P gold pin DIP sockets (pn 575-113308)
1 250vac .12a bussman fuse
1 blue led
2 2AG or 5x20mm fuse holder clip
2 molex right angle brackets 4p
3 molex crimp term 22-30 tin
2 molex hsg 2p with lkg ramp connector
2 molex right angle pcb hdr 2p tin
2 molex hsg 4p with lkg ramp
1 molex vert pcb hdr 3p tin
1 molex right angle pcb hdr 3p tin
This is the version with the battery board and charging circuit.
Everything is there save for a few odds and ends (nothing more than ~ $25). There is close to $300 in parts. A list is detailed below as well as pictures.
Asking price is $155 plus shipping. It's all packed up securely.
Parts list:
1 amplifier PCB board
1 battery board PCB
2 RK27 volume control
2 RCA audio jacks
6 2AAA battery holders (2468)
12 AAA 650 mAh Sanyo metal hydride rechargeable batteries
1 1/4" Neutrik locking headphone jack
1 battery management ic (MC33340PG)
1 LM317T/NOPB (ic reg positive adj TO-220)
3 TLE2426CLP TI semiconductor (Voltage & Current References 1/2Railvtl Gnd)
9 2N5087_J18Z bipolar PNP transistor small signal
2 TI TLE2426CLP IC 1/2 RAIL VIRTUAL GND TO-92
3 MJE243G TRANS PWR NPN 4A 100V TO225AA
3 2N5484 fairchild jfets
9 PN4392_D26Z N Channel switch jfets fairchild
3 MJE253GOS-ND PNP power transistor
9 2N5486 RF jfet fairchild
3 BD140 bipolar audio amp transistor
3 BD139 NPN bipolar transistor STMicroelectronics
1 1N5314 4.7 mA current regulator diode
1 Vishay 1N5234B-TR zener diode 6.2v .5w
10 Vishay metal film caps 1uf 63 vdc 10%
3 bourns trimpots 2.0k ohm 3/8"
3 bourns trimpots 2k ohm 3/8"
1 1N4001-B rectifier 50v/1a
6 Vishay metal film resistors 2w 3.3 ohm 5%
3 AD825AR opamps
6 Nichicon 220 uf 25v electrolitic cap
5 0.1uf 250v 5% Vishay metalized polyester film cap
1 10 pf 500v +/-0.5 pf CDE mica radial lead cap
1 100 pf 500v +/-0.5% CDE mica radial lead cap
1 TO-220 .500" heatsink (pn HS107 or 577202B00000G)
3 3P molex header
15 molex crimp term reel housing
4 8P gold pin DIP sockets (pn 575-113308)
1 250vac .12a bussman fuse
1 blue led
2 2AG or 5x20mm fuse holder clip
2 molex right angle brackets 4p
3 molex crimp term 22-30 tin
2 molex hsg 2p with lkg ramp connector
2 molex right angle pcb hdr 2p tin
2 molex hsg 4p with lkg ramp
1 molex vert pcb hdr 3p tin
1 molex right angle pcb hdr 3p tin
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