Categories: Pro Audio Archive

Pultec 1977 Full-Line Catalog

Download the complete twelve-page 1977 Pultec outboard audio equipment catalog:

DOWNLOAD: Pultec-1977_catalog

Units covered, with text, specs, and photos, include: Pultec EQH-2, EQP-1A3, and MEQ-5 equalizers; Pultec HLF-3c and HLF-26 filters; Pultec SP3 and MH4 mixers.

Until I saw this catalog I had not realized that the original Pultec production run had extended into 1977.  These are the solid-state Pultecs, not the more coveted vacuum tube units that trade in the $5000 range, but AFAIK the actual equalization stages are the same as in the earlier tube units.  I have never scratch-built a Pultec clone, largely because the idea of hand-building the multi-tapped inductors always seemed a little daunting to me.   I recently found myself in possession of a large batch of various MiniDuctors, though, and I am wondering if these can be put service in a Pultec-type circuit.  The mH values are very close to those in the putlec schematics, but I cannot find any reference online to anyone building a Pultec using MiniDuctors rather than a large coil-wound inductor.  Anyone have any idea about this?

 

 

chris

View Comments

  • Hey yes the single mini inductors work well.
    I use them and have them in my home made units.

    It is only wire wrapped around a ferrite core..... (flame time:-)

    Many inductor based units from time ago used discrete inductors.
    The multi-tap is probably due to custom values and labor / costs etc.. It is much quick and easier to use a single unit rather than a dozen different inductors.

    With-out the inductors in the classic EQP it will act as a shelf-eq .
    Experiment, the whole passive circuit can be built point to point on the pots alone!

  • Oh yeah, don't worry about the output amp . Just turn the volume up on your mixer or build a modern solid state amp around a TL071 etc..
    Passive works just fine , just a little quiet.
    :-)

  • tyco makes nice little inductors , many people are using them now due to the price of the multi-tapped ones. They work perfectly.

  • G'day Chris.
    Any idea what serial numbers we saw a change from tube to solid state circuits on the 1A3 program EQ unit?

  • Hi Evan, no, I have no idea, I don't own any pultecs myself so i've never looked into it.

Share
Published by
chris

Recent Posts

PSRadio October 2024: psych& pop-psych rarities 1968-1971

Starting this month I am scaling back the monthly WPKN FM radio show to one…

11 hours ago

PSR June 2024: Japanese rock, folk, psych, and soul 1968-1982

Im back from 2 weeks in Japan, time that I primarily spent hunting for records.…

4 months ago

New LP ‘Secular Music Group Vol 1’ + New Haven Live Date 6.30.24

Available now on LoveAllDay Records : the new LP "Secular Music Group Volume 1"- avail on vinyl…

4 months ago

Preservation Sound Radio May 2024

This month's Preservation Sound Radio program will air tonight Tuesday May 21 at 8:30 PM.…

5 months ago

9sides: Preservation Sound Radio March 2024

This month on Preservation Sound Radio: nine side-filling tracks from 1970 thru 1986, all from…

7 months ago

Preservation Sound Radio Feb 2024: best new (old) tracks

This month's show airs Tuesday 2.20.24 at 8:30PM -11:25PM EST on WPKN 89.5 FM in…

8 months ago