Ampex 351

Blog

Mix Blog: Ampex 351 Resurrection, The Sequel — Part 2: Rectifying an Age-Old Problem

By Steve La Cerra ⋅ Published: 03/21/2025

After a few tweaks to bring the power connection up to modern AC standards, my refurb of a second Ampex 351 electronics module continues…

Blog

By Steve La Cerra ⋅ Published: 03/07/2025 ⋅ Updated: 03/21/2025

Can Steve La Cerra bring an Ampex 351 back to life? We'll find out—but the first stop is fixing that Death Cap!

Blog

By Steve La Cerra ⋅ Published: 01/08/2020

The Ampex 351 was working, but relatively noisy, so Steve La Cerra started replacing tubes; he found that not all tubes are created equal.

Blog

By Steve La Cerra ⋅ Published: 10/29/2019

Has it really been three months since we last visited the Ampex 351 Audio Dinosaur? I estimate that I’ve logged 200,000 miles since the...

Blog

By Steve La Cerra ⋅ Published: 07/23/2019

When last we left my Ampex 351 Audio Dinosaur, I had installed a newly rebuilt power supply, ensuring that all sections of the 351...

2019

By Steve La Cerra ⋅ Published: 07/10/2019

Plus: Martin Audio WPS Line Array

Blog

By Steve La Cerra ⋅ Published: 06/25/2019

At the close of the first episode of “Resurrecting an Audio Dinosaur,” my lovely Ampex 351 tape machine channel was alive and working—though I...

Blog

By Steve La Cerra ⋅ Published: 06/11/2019

You’re looking at the electronics for a single channel of an Ampex 351 tape machine that was built in the early 1950s. Ampex manufactured...