Philips GZ34 Metal Base Rectifier Tube - ULTRA RARE

tV2-57B Code - Hole in Guide Pin - Dual "D" Getters
Straight Plate Sides - Vintage 1957 FEB 

This Philips Miniwatt Metal Base GZ34 is the absolute holy grail of 5AR4/GZ34 Rectifier Tubes.  Your search for the perfect rectifier is over as there is no better GZ34! Very few of these sweet tubes are left on earth! This is an EXTREMELY RARE find indeed!!!

 Tested on AT1000 w/Forward & Reverse Voltage Specs

In order to make an informed decision on buying a rectifier tube you need to know the Forward Voltage Drop and Reverse Voltage. The 2 most important numbers to focus on is the FORWARD VOLTAGE DROP and BALANCE BETWEEN SIDE 1 & 2. Balance delta should be no greater than 5%. These are numbers that you will NEVER get with a vintage tube tester and are critical to the performance of your equipment.

Here are the desired target numbers for a GZ34 / 5AR4:
 * Forward Voltage Drop:  12 volts or Less = NOS Specs
 * Reverse Voltage: Greater than 420 volts = OUTSTANDING

Tube #02-06010 Results:
 * Forward Voltage Drop Side 1:  5 = outstanding!!!
 * Forward Voltage Drop Side 2:  5 = outstanding!!!
 * Forward Voltage Balance: Perfect
 * Reverse Voltage Side 1:  431
 * Reverse Voltage Side 2:  431
 * Reverse Voltage Balance: Perfect

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I Stand Behind Everything I Sell

About BULLzTUBEz:

I've been an Audiophile for over 50 years, 2 time National Champion in Car Audio and owned a chain of Car Stereo Stores... I have a massive collection of vacuum tubes specializing in mostly esoteric tubes but I have just about any tube you need. Just check the store for the listed inventory. If you have a request just send a message to NOVA.76 through the eBay messaging system... 

I stand behind everything I sell... My goal is to "Create a Positive Experience" for my customers.

About My TUBEz:

All tubes are tested with the Audiophile in mind for SHORTS, GAS, MUTUAL CONDUCTANCE, EMISSION and NOISE (large tube lots are not tested for noise). All my tubes are tested thoroughly on an Amplitrex AT1000... My backup tube testers are an AVO MKIV and another Amplitrex AT1000... I WILL NOT GUARANTEE THAT MY READINGS WILL MATCH YOUR READINGS... Variations in Line Voltage and Test Equipment excludes any claims regarding matching test results on any equipment other than mine...

Warranties:

Used or vintage items are sold as is with no warranty beyond the description and photographs provided on the listing. Returns will NOT be accepted for reasons such as: don't like the sound, ordered the wrong item, changed mind, not what I thought it was, wrong color ordered, wrong item ordered or tube readings don't match my tester. Any exceptions are on a case by case basis and subject to a 15% restocking fee... 


Shipping:
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