Vintage McIntosh MI-3 Maximum Performance Indicator (Serviced, Recapped & Tubed)

Description

McIntosh MI-3 Maximum Performance Indicator
CLICK on YouTube DEMO Link:
https://youtu.be/aXEC5pA7WEk
For your consideration. A vintage
McIntosh MI-3 Maximum Performance Indicator. Serial # 11E54
In VG, if not EX cosmetic condition.
For a detailed view of the unit up close
View listing photos & YouTube DEMO link
.
There is some delamination
around the Panalocs & a very small crack in the bottom right corner of the glass.
Unit has been s
erviced, recapped & retubed.
All service adjustments performed by a professional tech semi-retired with 45 years experience in high-end audio repairs to bring unit back to original factory specifications if not better. Looks, sounds & performs beautifully. The unit shows signs of use, and is clean and working properly. That being said, due to the age of this device & the uncertain nature of vintage electronics. This unit is being sold AS IS as pictured/described, meaning returns are not accepted. You are buying with this in mind. Item will ship insured with signature required. Thanks for looking!
McIntosh MI-3
Maximum Performance Indicator (1970)
Description
The McIntosh MI-3 is five laboratory instruments combined into one compact instrument.
It is a professional oscilloscope, relative signal strength indicator. calibrated FM deviation meter, calibrated balance meter. and phase indicator. These instruments are used by FM stations to determine the best possible performance for your listening enjoyment.
The McIntosh MI-3 Maximum Performance Indicator makes it easy for you to attain professional broadcasting quality FM listening.
It shows you what you need to do to improve your system's overall performance. It is designed to be used with an FM tuner and stereo preamplifier.
When the MI-3 is used with an FM tuner it will detect and display multipath reception. Multipath reception is the result of a reflected signal arriving at the tuner antenna slightly later than the direct signal. By rotating or repositioning your FM antenna it is possible to reduce the multipath reception. The Maximum Performance Indicator makes it easy to know when the FM antenna is oriented for the best reception of any station.
To show multipath reception the MI-3 displays instantaneous signal strength versus frequency deviation. Signal strength is shown as vertical deflection of the indicator display beam. Frequency deviation is shown as horizontal deflection. Multipath reception appears as a peak or valley in the MI 3 picture tube display
Specifications
Signal strength (vertical) input: 700mV
Dimensions: 16 x 5-7/6 x 13 inches
Weight: 23 lbs
EXCELLENT SELLER! Amazing packaging, FAST SHIPPING! Wonderful communication! THANK YOU!
Vintage Pioneer PL-518 Auto Return 2-Speed Direct-Drive Turntable (#
303801735892
)
Buyer:
moldenhauer_2012
(
511
)
Item as described. Excellent condition.
KEF 107/2 Reference Series Speakers Midrange/Tweeter HEADS (#
303935571957
)
Buyer:
methaneslicer
(
210
)
This is a great seller. I am so happy with my purchase! The turntable was exactly as described and beautiful. You can tell it was packed with much care when I opened the box. I wish new products were packed with as much care and precision. The seller was very easy to reach when I was tracking the package and had any questions. I would HIGHLY recommend this seller for any vintage audio needs.
Vintage Thorens TD160 Turntable in Original Box (Serial #252928) (#
303927982087
)
Buyer:
daytonaeagle
(
39
)
Awesome reel to reel player, just as described. Very well packaged and speedy shipping / delivery. Excellent eBay seller!
Vintage Technics RS-1500US Limited Edition Carbon Fiber R2R By J-Corder (#
303927999189
)
Buyer:
gregbeastaurora
(
1724
)
Great, item like new - Highly recommended seller and fast delivery from USA 👍
Audioquest Anaconda XLR 2M Audio Interconnects (#
303783645963
)
Buyer:
dogholmes
(
226
)
5* AAA Item as described, packed professionally and shipped promptly Awesome !
Vintage Marantz 6300 Turntable w Empire 2000Z (#
303914102628
)
Buyer:
scubacuda
(
420
)
Exactly as described. Great packaging.. A+ Seller!
Vintage Thorens TD160 Turntable (#
303902053101
)
Buyer:
cardlover33
(
594
)
Very Nice B4 TT Packed Perfect. Would buy from this seller again FIVE STARS*****
Vintage Yamaha YP-B4 Fully Automatic Turntable w Ortofon M20FL Super Cartridge (#
303886182006
)
Buyer:
craigs_jazz_bass
(
785
)
As advertised. Great packing
Vintage Sansui 9090 AM/FM Stereo Receiver (1975-77) (Serviced & Recapped) (#
303826634395
)
Buyer:
mitchpinion
(
647
)
A dream come true, better than new! Secure packaging, works perfectly!
Vintage Kenwood KR-9600 AM/FM Stereo Monster Receiver (Serviced & Recapped) (#
303832633192
)
Buyer:
jag946
(
105
)
A+++ PERIOD!! From the best electronic packing I have ever received to the unit
Vintage McIntosh MA6100 Integrated Amplifier Serial #P8346 (Serviced & Recapped) (#
303595244857
)
Buyer:
rogersdmj55
(
461
)
A Great Vintage McIntosh MA6100! Fast & Secure Shipment! Ideal Ebay Seller! A++
Vintage McIntosh MA6100 Integrated Amplifier Serial #AE492 (Serviced & Recapped) (#
303651956274
)
Buyer:
denwdnboat
(
1056
)
A Great Vintage McIntosh MR78! Fast & Secure Shipment! Ideal Ebay Seller! A++
Vintage McIntosh MR78 Stereo Tuner (Serviced & Recapped) (#
303717964675
)
Buyer:
denwdnboat
(
1056
)
Thank u! Love it!!!
Vintage Marantz WC-9 NOS (New Old Stock) UNSEALED IN BOX Wood Cabinet/Case (#
303539945327
)
Buyer:
nalamopep7
Item arrived as described thank you
Vintage NOS (New Old Stock) Marantz WC-43 Wood Cabinet/Case (#303506472888)
Buyer:
buyguy54
Item was as described and seller had outstanding communication!
Vintage Bell Carillon 6060 Tube Amp (Professionally Serviced/Recapped/Re-tubed) (#303528395961)
Buyer:
yoderfam2012
Perfect in every way !!!
Vintage Marantz 4270 Receiver Pro/Serviced & Recapped + LED Upgrade & WC-22 (#303400740547)
Buyer:
briakoppenhave0
Great seller. Arrived quickly. Packaged VERY well.
Vintage Pioneer PL-560 Turntable with Stanton 680EE Cartridge & NEW Stylus (#303382638216)
Buyer:
sledgeaw
Nice clean unit, works great so far
Vintage Pioneer SPEC-2 Rack Mount Stereo Power Amplifier (3 Line Voltage Model) (#303423883114)
Buyer:
mmicman
WOW! AAA+
Symposium Acoustics ULTRA Energy Absorption Platforms 19" x 14" (#303373067498)
Buyer:
mobybay
Excellent seller! Exactly as described, well packed, insured, A+ follow-through!
Vintage Pioneer SX-1010 Stereo Receiver (Serviced & Recapped + LED) (#
303530402736
)
Buyer:
bwkelley76
Incredible. The Amp is beautiful--pristine. Packing was beyond excellent. A+++
Vintage McIntosh MC 250 Solid State Stereo Power Amplifier (Serviced & Recapped) (#
303604062495
)
Buyer:
gcapny
knows how to pack stereo equipment.
Vintage Mcintosh MA5100 Solid State Stereo Integrated Amplifier w Case & Panloc (#
303437586171
)
Buyer:
gcar1656
Great transaction, fantastic turntable, top notch packing!
Vintage Thorens TD160 Turntable with Stanton Cartridge in Original Box (#
303617872234
)
Buyer:
markguinness
Very happy with the record player
Vintage Thorens TD160 Turntable with Ortofon Cartridge (#
303591028230
)
Buyer:
mitcba-40
Item as described, fast shipping, great communication & packing. Thanks!
Vintage Pioneer PL-530 Turntable with Audio Technica AT14Sa Cartridge (#
303613562133
)
Buyer:
briansshellacshack
Great purchase!! Super helpful when I asked questions
Vintage Thorens TD160 Turntable with Grado Cartridge (#303581989275)
Buyer:
jube821
Quick and efficient. Product as described.
Conrad-Johnson PV10A Stereo Tube Preamplifier With Phono Stage (#303562482278)
Buyer:
davimaru
excellent service
Vintage McIntosh MAC 1700 Stereo Receiver w Wood Case (Serviced & Recapped) (#
303566880675
)
Buyer:
harley9eleven
Would buy again from here
Vintage Pioneer SPEC-1 Rack Mount Stereo Preamplifier (3 Line Voltage Model) (#303423834381)
Buyer:
yorkcarolrn
Excellent transaction. I’m now in heaven with my new vintage receiver!
Vintage Marantz 2270 Stereophonic Receiver (Serviced & Recapped + LED Upgrade) (#
303588364214
)
Buyer:
ksf442
Turntable packaged with detail and care. It works and sounds great. A+ seller
Vintage H.H. Scott PS-87A Direct Drive Fully Automatic Turntable in Original Box (#303551572059)
Buyer:
zsfhawgs
Item was as described. Fast shipping, and great seller communication!
Vintage Marantz Model 6350Q w Shure V15 Type IV & NEW Jico VN-45HE Stylus (#303401938187)
Buyer:
yoderfam2012
Item 100% as advertised / Fast Shipping / Safe Shipping / Very Happy / A+++
Vintage Sony CDP-X555ES Compact Disc Player (#303581875203)
Buyer:
jermaster2011
Fast service. Always a pleasure to deal with.
Vintage Marantz 2440 Quadradial 4 Adaptor Amplifier (#303581923887)
Buyer:
retiredfirefighter1
Exactly as described, very professional packing.
Vintage Technics SL-1900 Fully-Automatic Direct-Drive Turntable NO CARTRIDGE (#303533649155)
Buyer:
jacoblovins2012
Super fast shipping, well packed, better condition than description will definiw
Tannoy 12" Monitor HPD 315 Dual Concentric Drivers & Crossovers (#303546057249)
Buyer:
williamblaak
the packing job was exceptional! My turntable was even better than described.
(Private listing)
Buyer:
thask801_6
good item and fast shipping ! thanks!!!
Klyne SK-2A Moving Coil Preamp Step Up MC Preamplifier Head Amp + Manual (#303531778704)
Buyer:
cherry77777
A+++ Fantastic seller! Fast shipping! Well packed!Awesome. Thank you very much!!
Vintage Marantz 2325 Pro Serviced & Recapped + LED Upgrade & Original Boxes (#303508296342)
Buyer:
miko00777
Fast Shipper!! Item As Described. Works Beautifully. Thanks!!!
Vintage Technics SL-1900 Turntable w Pickering XSV-3000 & D3000 (#303370403737)
Buyer:
musiqman34
this seller is the most honest and profesional I have dealt with on ebay
Vintage Luxman SQ-707 Solid State Stereo Integrated Amplifier (#303552358482)
Buyer:
lickdenstein
As advertised. Expert packing and great communication.
Vintage McIntosh MA6100 Integrated Amplifier (Professionaly Serviced & Recapped) (#303538133604)
Buyer:
piefra-86
Arrived quickly, items packed and padded perfectly. Transparent communication.
Vintage Technics SL-1301 Quartz Lock Direct Drive Automatic 120V/240V Turntable (#303356004338)
Buyer:
hammond823
Well packaged and as described - thank you
Vintage Nakamichi DR-3 Audiophile Professional Cassette Deck (#303274442807)
Buyer:
josiahmdanieliv
Great seller, amp was cleaner than expected and works fine. A+++ all the way
Vintage AIMS VTB-120 1970s Bass/Guitar Tube Amp - 120 watts - Made in the USA (#303515606026)
Buyer:
mongo-lloyds-of-london
AAAAA+++++Well packed,fast shipping,item as described. Thanks!
Vintage McIntosh MC2100 Stereo Power Amplifier (Serviced/Recapped) (#303514585192)
Buyer:
sbaggs2010