"love what you listen with"

                ♥ Test-Gear ♥

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* K = 1000.     PR = pair.     PTC = partial trades considered.

 allegrosound dot com 

AllegroSound has been dedicated to
accurate recording and reproduction of
acoustic music for well over ¼ Century.
For those who value ears-on experience,
AllegroSound is "hear" to assist you.

Trades welcome!  allegrosound dot com AllegroBio 

* AllegroQC with 40 yrs experience.
* Safe-Packing. Trust your purchase to
one who knows and cares to pack it so
you receive it in the same condition :-)
* Commercial Invoice with proper HTS#
provided with foreign shipments reduces
unnecessary delay & damage in Customs.

World-Wide Shipping

Most be 30~70 years old with imperfections
including, but not limited to, old capacitors,
non-functioning lamps, off-center knobs,
oxidation, scratches, nicks, dings, etc
NO "mint"!  NO "minty"!  NO "perfect"!
All pre-owned/used unless otherwise ntd.

AllegroGrade on scale of 1~6:
  6 = New-In-Sealed-Box.
  5 = New-In-Open-Box.
  4 = Demo-In-Open-Box.
  3 = Good. 2 = Fair. 1 = Poor.
* most be AllegroGrade 3 - actual pics
sent prior to packing if not already posted.
All sales as-is and final, so if you have any
special requirements regarding condition,
tell me before sending deposit/payment.
See Pics, MainsVoltage, Terms below
& Questions & Answers (Q+A) in Menu.

Pics are shown for display purposes
& may not represent exact condition;
text trumps pics - read description
and email if you need clarification.

allegrosound dot com  Mains Voltage & What To Do About It
allegrosound dot com  220~240 Vac 

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* prices NET-USD f.o.b. Los Angeles, California, USA.
* k = US$1,000.   ptc = partial trades considered.
* tbd = to be determined.   mp = matched pair.
* prices w/o deposit subject to change w/o notice.
AllegroLayAway with 20~30% down.
AllegroTradeUP with your approved trade-in.
AllegroBuyBack on selected items (see Q+A).

AllegroSound trade-ins/purchases are not
final until received, inspected, tested and
approved by AllegroSound. Items failing to
meet described condition will be returned
at Customer's expense plus $90 minimum
for inspection/testing/repacking/handling;
additional fees may apply.

 Vacuum Tubes
All tubes sold by AllegroSound have been
carefully tested on the finest equipment
and, therefore, are technically "used".
* most plug-in tubes carry our exclusive
100-day exchange/1-yr pro-rated warranty.

  Terms & Conditions
Equipment is carefully inspected, cleaned,
variac'd, tested for dc-offset & auditioned
in ref system before it leaves our facility.
Quality work with TLC takes quality time;
I work at my pace & have orders ahead
of yours; item will ship when testing is
completed and packed for safe transit.
Suitability sole responsibility of Buyer.
Not responsible for errors/semantics/etc.
All items subject to prior sale or no sale.
Prices subject to change without notice.
All equipment as-is without warranty.
All sales f.o.b. Los Angeles California;
all matters & costs beyond this point,
including, but not limited to, packing,
freight, ins, taxes, fees, duty, are sole
responsibility of Buyer. All sales final.
L.A.C. Sales Tax applies in California.

      allegrosound dot com     allegrosound dot com allegrosound dot com           

Why upgrade?
When your system doesn't sound good, u don't feel good;
when you don't feel good, your work is not good;
when your work is not good, your marriage is not good;
when your marriage is not good, you get divorced;
when you get divorced, you loose your system.

Upgrade today at


Allied-Radio Knight KG-600C Portable Tube Tester. 

5~350mHz Spectrum Analyzer...
  spectrum analyzer 
Anaconda-Texscan 9300
RF Spectrum Analyzer,
5-350 mHz, solid-state,
9"crt, 19w-17h-14d, 55#.


Eico 955 In-Circuit Capacitor Tester.  

General Radio 650A
Impedance Bridge.

General Radio 1555A  
portable analog db Meter
with original leather case.


General Radio / GenRad 1591 Portable
Automatic Voltage Regulator.


Hewlett-Packard Variable-Persistence
Storage Oscilloscope circa 1970,
181AR Rack-mt Mainframe containing
181A Oscilloscope with 5" CRT display,
1801A Dual-Channel 50MHz Amplifier,
1821A Time Base + Delay Generator.
HP 181AR scope

Hickok 6000 Portable Tube Tester, English + Gm.  

Hickok 533 Tube Tester, English scale + direct Gm.  


Hickok 539A Tube Tester,
direct Gm readout.

Levell TG-200DM RC Oscillator.   made in UK


Philips PM-6507 Lab-Std Curve-Tracer,
Ic 20A, Vce 500V, 3KV diode test,
18-9-13", precision Swiss build.
Philips PM-6507 Curve-Tracer 

Sencore TC-28 Portable Tube-Transistor Tester.  

Sencore Powerite PR57 Isolated & Metered Variac/Analyzer.

indespensible tools for the vinyl connoisseur...

Shure CPEK-3 Stereo Cartridge Analyzer
+ Shure-modified Swift Instruments Lab
Microscope with Zoom, Jig & Lighting,
Shure Test LP, Op-Manual, Schematic.

Shure CPEK-3 Cartridge Analyzer


Simpson 313-2 VOM, 7.5" analog meter.


Staco EJ401V AC/DC Portable Metered Isolated Variac. 


Superior-Electric Powerstat 3PN116B 10A Portable Variac. 

like no other!

fabled Tektronix 570 Curve-Tracer,
late-version, in use, plug-N-test.

 Tektronix 570 Curve-Tracer 

Laboratory Tube Analyzer

Triplett Westmore 501 Laboratory Tube Analyzer,
U.S. Federal Aviation ver of fabled Triplett 3444,
made by Triplett Electrical Instrument c.1959-1967,
diff being added AC Overload Indicator on 501.
Special features include a 5kHz oscillator for
signal and plate-current reading up to 50mA.
 Triplett Westmore 501 Laboratory Tube Analyzer 


−  Established 1973  −
"love what you listen with"
Los Angeles, California USA

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AllegroSound et al assumes no responsibility for use or misuse of products, services, info, etc.
design & original content ©AllegroSound, los angeles, california, usa. all rights reserved.

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