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link to more info on science photos

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Oldies  but  Goodies


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For sale now on trademe

Bid  on  trademe  ONLY

repair ,  test ,  or  loan

Items not yet ready for sale
  SOLD 2019  archive 1 , 2
Items  SOLD  this  year
2018  1 , 2   2017  1 , 2   2016  1 , 2   2015  1 , 2   2014  1 , 2
2013  1 , 2   2012  1 , 2   2011  1 , 2   2010  1 , 2   2009  1 , 2    2008
Archives  of  past  sales

EXPLORE :  Info  on  science  images

   Information and links for science images :

    Gravity Waves detected :

  LIGO Caltech Aug 17 2017
   For the first time, scientists have directly detected gravitational waves — ripples in space-time — in addition to light from the spectacular collision of two neutron stars

   This marks the first time that a cosmic event has been viewed in both gravitational waves and light

   The discovery was made using the U.S.-based Laser Interferometer Gravitational-Wave Observatory (LIGO); the Europe-based Virgo detector; and some 70 ground- and space-based observatories

   Neutron stars are the smallest, densest stars known to exist and are formed when massive stars explode in supernovas. As these neutron stars spiraled together, they emitted gravitational waves that were detectable for about 100 seconds; when they collided, a flash of light in the form of gamma rays was emitted and seen on Earth about two seconds after the gravitational waves

   In the days and weeks following the smashup, other forms of light, or electromagnetic radiation — including X-ray, ultraviolet, optical, infrared, and radio waves :  were detected

   More info :   LIGO and Virgo make first detection of gravitational waves produced by colliding neutron stars

       NRPavs   news                                        © NRPavs   2006 - 2020    All Rights reserved                          Email NRPavs

  April 2020 :
     In April, activities are restricted by the COVID-19 level 4 requirements : we continue vintage speakers restoration and electronics repair & testing
     NRPavs hopes to resume normal courier and local pickups & deliveries in May 2020





testing

amplifiers & receivers :   Nakamichi Receiver 1 1st   Genexxa STA-2170
  Denon PMA-925R 1st,  DRA-325R 3rd   Pioneer VSX-D512 1st
  Yamaha AX-540 1st,  RX-530 3rd   Sony STR-D965 2nd,  TA-AV561 2nd

cd players :   Yamaha CDC-755 3rd   Sherwood CDC-680
  Denon DCD-800 2nd   Sony CDP-CX235 6th

tuners :   Sony ST-JX411 3rd,  ST-JX661 4th   Sanyo JT2003 2nd
speakers :   Roth OLi2   KEF K140   Celestion 1   Gale Silver Monitor   Sony SS-T561AV 2nd

restore

Grilles make or recover :   Mission 70mkI 2nd


repairs

amplifiers & receivers :   Mission 772  and  Rotel RB-1080 power amplifiers

speakers :  Celestion 15,  Ditton 44

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Links


Link to Oldies but Goodies speakers etc

Restored speakers from 2011 :  click the photo to link to the Oldies but Goodies selling page . . .

To view our current items for sale :

Click the  sitemap   or   Oldies  but  Goodies  links


 

            NRPavs   services
The main purpose of NRPavs is to provide audio video advice, help with purchasing equipment, and where appropriate provide custom solutions

We do offer in Oldies but Goodies, secondhand av equipment, but we can also provide what you are looking for from new products or quality traded goods purchased especially to match your needs


www.nrpavs.co.nz


    Contacts :   Noel R. Parkin
emails   sales@nrpavs.co.nz
noelparkin@nrpavs.co.nz

phone  no landline
mobile     021 111 1030
  Skype              grub49

address   24 Bonselaar Drive 
Kamo Whangarei  0112  New Zealand


  -:®:-  quality   vintage  audio  equipment   and   modern  solutions    -:®:-  restored  speakers  -:®:-   good  advice  -:®:-  Oldies  but  Goodies  -:®:-   Science interest links   -:®:-  

© NRPavs   2006 - 2020    All Rights reserved