I passed on the tuner because I never listen to the radio but I sometimes regret it. Using them as separates doesn't work as you found out. But four-channel audio was a disaster right from the start, both technically and marketing-wise. And a Golden Age it was. I'm not an electronics expert, but I'm pretty technical. Fresh heat-sink compound applied to all 4 output transistors.
A quick call to the manufacturer will prove telling. First, we prefer products made by a major manufacturer, meaning that you can still get repairs or, at least, parts. Agreed, Kenwood Trio should not be looked down upon. Finally the unit is carefully wrapped, insulated, packed and double boxed in new cartons. Ask around, there is a lot of gear out there, not everything is on eBay or online.
When cleaning the potentiometers, they can be left in the receiver if you are able to still stick the straw of the spray in the space by the leads. Marantz 4240 Quadrophonic Receiver 1974 The Marantz 4230 is created for stereo and 4 channel Quadraphonic sources. Of course, some clients want certain levels of repair or restoration performed, based on their needs. It sounds like it's visual impression - great!. Any suggestions on static resolution.
I have an old Mark Levinson No. Classic audio enthusiasts favor Pioneer units; Ebay. Ground breaking, paradigm-shifting designs and technologies peppered the consumer landscape. The mids are very clear, but don't shout on complex music like the Pioneer did. The rated output of 2x40 watts or 4x17 watts was always outbid in tests thanks to the Marantz typical transformer dimension. Cotton balls and swabs are good for this.
Most issues are addressed while restoring a unit anyway. Value: A high end, restored vintage receiver will run you between 100 an 350 dollars usually. Powder Coating and Anodizing are also sent out, as is stencinging of the front or back panel where needed. It's a multiple step process but with positive results: Dust removal: use an air duster to spray the dust out from in the pot. A mild soap and water solution can be used on tough dirt on wood and metal surfaces; just make sure it isn't dripping into the circuit or controls. Surround yourself with Silver and find it again! My write-in vote goes to the Sansui G Series receivers. These receivers also displayed solid machined aluminum knobs, silver toggle switches and push-buttons and walnut veneers and trim.
From the blue back light model Receivers of the early to mid-seventies to pressed aluminium silver tuning dials from the mid-seventies onwards. The first is the age. Conversely, enough power and detail down low for quieter listening situations. The receiver makes use of the dimensions and the weight of 19kg a powerful impression. If possible, buy from a friend. Some of these vintage units are trading for more than a good used car today.
The most overlooked issue by newcomers to vintage audio is the capacitors. What distinctive and classy units they were. Blown bulbs are also expected, and should not lend much to the decision. Every single wire and connector is visually inspected for proper positioning and connection quality. Pioneer never manufactured a unit to match these specifications ever again and this is one of the many reasons purists believe that this model is the apex of high fidelity sound. I am in Ocean County section of New Jersey. The flimsy rationale was that an amplifier—if it had enough of a power supply—could probably muster about double its Peak power for the briefest of instants, if it had the wind at its back and you completely disregarded the distortion.
If you are up to the scavenger hunt, a well-sorted Stereo 70 still provides highly musical results. Is this an easy fix? On our test bench the internal amplifiers of this particular unit,. Several Web sites are devoted to this speaker, the most comprehensive being. Kenwood, Sansui, Sherwood, they all had them, and they were all great pieces of gear. The values of each cap are listed separately with a D or a triangle between them. This modest amplifier was built by the thousands—more than 350,000, to be exact—with many constructed by hobbyists.