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We can provide special order made ISO (TANGO) power transformer which use for 117V, 220V, 230V,240.You dont need to use step down transformer as using my amplifier

From now we can provide amplifier with wooden chassis based on order of customer. Please contact for more detail !!!

50s yearPeerless (Altec) A-428B preamplifier 600:600ohm * VG+++

Sales price:
$ 2,250(Listing price is for payment via Paypal, discount 2% if payment via bank transfer)
Shipping fee: $100 (Free shipping fee for all customers have Japan shipping address)

Manufacturer:
Altec

Audio amplifier » Preamplifiers
Extra rare Peerless A428B preamplifier, Input transformer is 4629, output transformer is Langevin 16287. I dont change anything to original schematic, just add power supply for it.

Prestage tube and secondary tube is 12AY7(12AT7). You can change tube to 12AU7, 12AX7 without any change.

Gain is 20db, response frequency is 20~20K Hz.

Power supply is separated with amplifier part. Rectifier tube is 5R4GW, 6SN7 and 12AX7 was used for regulating help sound more analog and clearly.

Original schematic is included.
Click to the image to view it in big size and please read our busines term before making your decision

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More detail pictures:

50s  yearPeerless (Altec) A-428B preamplifier 600:600ohm * VG+++

50s  yearPeerless (Altec) A-428B preamplifier 600:600ohm * VG+++

50s  yearPeerless (Altec) A-428B preamplifier 600:600ohm * VG+++

50s  yearPeerless (Altec) A-428B preamplifier 600:600ohm * VG+++

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