Harman Kardon CITATION 21 Stereo Pre-Amp Controller Tested Working Preamplifier has been fully tested and is in working order. Distributes clean audio. lights and all buttons work. Only issue is when you press the phase correct button it makes a pop, just the half a second when you press the button in. Cosmetically in very good condition. Model#: Citation 21Serial#: S101-04711 ELECTRONICS DISCLAIMER: Due to the nature of electronics, Serial numbers have been photographed and recorded, and tamper proof labels are used to prevent tampering. We strive to take excellent pictures and describe items as thoroughly and accurately as possible, but please dont hesitate to ask any questions that you may have. Thanks for looking! EB-12703

This is a reprint of an Audio Advertisement from 1977! Very rare and hard to find! A piece of Audio History! I have THOUSANDS more Ads and Reviews on my Ebay Store. Email with ANY questions, THANKS! -Search for any brand you like on the left side in my Store Search bar. I have almost every popular Audio brand! -Page is 8.5 by 11 -Shipping is $3 in the USA and $6 ANYWHERE else, I ship WORLDWIDE! Each additional item is only $1 more to ship! -As always, your satisfaction is GUARANTEED at Electronics Archives! If you are unhappy with any purchase, email and I will get you a resolution or a refund! -Email me with any questions, I put 10-20 new Ads and Brochures on my site EVERY DAY! THANK YOU! Powered by eBay Turbo Lister The free listing tool. List your items fast and easy and manage your active items.

There are four very small stains where some staple holes are at the spine area. No text or diagrams are affected. In very good pre-owned condition. We have MANY more books (including dozens more vintage electronics service manuals) in our store, along with over 3000 vintage items. See category Books/Ephemera/Advertising. We combine shipping on purchases made the same day (unless it is not possible).

There are four very small stains where some staple holes are at the spine area. No text or diagrams are affected. In very good pre-owned condition. We have MANY more books (including dozens more vintage electronics service manuals) in our store, along with over 3000 vintage items. See category Books/Ephemera/Advertising. We combine shipping on purchases made the same day (unless it is not possible).

There are four very small stains where some staple holes are at the spine area. No text or diagrams are affected. In very good pre-owned condition. We have MANY more books (including dozens more vintage electronics service manuals) in our store, along with over 3000 vintage items. See category Books/Ephemera/Advertising. We combine shipping on purchases made the same day (unless it is not possible).

There are four very small stains where some staple holes are at the spine area. No text or diagrams are affected. In very good pre-owned condition. We have MANY more books (including dozens more vintage electronics service manuals) in our store, along with over 3000 vintage items. See category Books/Ephemera/Advertising. We combine shipping on purchases made the same day (unless it is not possible).