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Month: April 2019

New Adcom GFA-555 MK1 Input boards!

Posted on April 26, 2019January 17, 2022 by hoppesbrain

By popular demand, I have created new input circuit boards for the GFA-555 MK1! These boards integrate all of the improvements I normally make when I refurbish a GFA-555.

Buy one here.

Continue reading New Adcom GFA-555 MK1 Input boards!

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* Not affiliated with ADCOM corporation, past or present.

Featured Products

  • BFA-565 Power Supply for Adcom GFA-565 $160.00
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  • BFA-555 Smart Soft-Start Power Supply for the Adcom GFA-555 $220.00 – $340.00
  • BFA-555 MK2 Input board for ADCOM GFA-555 MK2 $80.00 – $380.00
  • BFA-555 MK1 Input Board for Adcom GFA-555 MK1 $80.00 – $360.00
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Recent Posts

  • How to build a Test Jig, or Test Fixture, for your Printed Circuit Boards
  • Heatsink WIN! New BFA-565 power boards are go. 👍
  • New serial number tags just dropped 😸
  • EBFA-565 versus BFA-565 (Validating a new design)
  • Introducing the EBFA-565; the Even Better F–cking Amplifier (New version Adcom GFA-565 Circuit Boards)

Recent Comments

David Gosiengfiao on Another tour of a Hoppe’…
Mike Primce on New serial number tags just dr…
hoppesbrain on New serial number tags just dr…
Jon Morris on Another tour of a Hoppe’…
Mike Smith on EBFA-565 versus BFA-565 (Valid…

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