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sherwood

  1. T

    Sherwood S-7250 CP

    Hi All. I just picked up a Sherwood S-7250 CP that I’m cleaning up and testing. The first thing I found is the dial cord is broken. I can re-string it but now I’ve discovered that the shaft on the ganged capacitor was completely seized. So I have lubed and worked it loose so it turns freely...
  2. C

    Need more output from tube tuner

    I have a nice Sherwood sv3000-V If I run it directly to my amp I get tons of volume.. The issue I had was no bass or treble control. A friend had a passive box he built the allows for bass / treble adjustment but at a loss of volume because of resistors etc. Is there a simple way to increase the...
  3. Sterling245

    Sherwood S-5500ii Blowing Power Tube (7868)

    Hi all, Today I was listening to my Sherwood S-5500ii when all the sudden I heard a hum from the right speaker. Before I could get over to it to shut it down, the main fuse blew. I went ahead and tested the output tubes, and found one of them had shorted. I opened up the amp to check and see if...
  4. vintagefeel

    Sherwood S5000 tube why is does it run so hot

    My Sherwood S-5000 tube amp runs extremely hot, can't touch protective plate without burning fingers. I tried a voltage regulator set at 110v, no luck, still burn fingers. All original tubes except rectifier which is Sovtek 5AR4. Any ideas why it is running so hot? What can I do to make it run...
    • vintagefeel
    • Thread
    • 110 120 hot rectifier s-5000 s5000 sherwood tube vintage voltage regulator
    • Replies: 13
    • Forum: Tube Audio
  5. Anson Mount

    Sherwood S-75CP

    I don't post much but sincerely appreciate everyone's knowledge. I am picking up a Sherwood S-75CP that appears to be a storage archive and very clean. I'm having trouble finding any history on this one, literature and whatever else. I did find a service manual however. I restored an S-7100A and...
  6. A

    Sherwood S-7100 Magic Smoke

    Hi AK’ers, I’ve got a magic smoke story to share, and I’m hoping for some advice on how to fix it. I’ve been working on a Sherwood S-7110 for a bit now, I got it in pretty rough shape with no right channel output, and after some unhelpful attempts to “fix” it. After a full recap, a replacement...
    • atrelstad
    • Thread
    • blowing fuses dead channel magic smoke sherwood
    • Replies: 3
    • Forum: Solid State
  7. Carbsandcaps

    Sherwood s-7700 vs s7000 vs s8000

    I picked up a Sherwood s-7700 for a song. It’s missing all the 6eu7’s and 7868’s which I already had the replacements. The biggest problem is the faceplate is gone so I’m on the lookout for one but it won’t stop me from getting it running again. All the voltages look good and the output...
  8. A

    Sherwood R-945 Receiver PROBLEM!

    Hey all, New Here, New to working on receivers. I have a Sherwood R-945 that will not produce sound expect for a tiny bit at Full volume. It has done this intermittently but now its really broken. In the past i was able to turn it on/off/unplug/replug and get it to start working. Now it turns...
    • aaustins14
    • Thread
    • low volume no sound r-945 sherwood sherwood r-945
    • Replies: 5
    • Forum: DIY
  9. S

    Sherwood SEL-200

    I love Sherwoods. I’ll just say it. I’ve yet to find another receiver brand that sounds sweeter to my ears. I’ve had several including three that I consider to be among the best fly-under-the-radar receivers out there: the S-7100, S-7225, and my favorite: the S-8900. I just acquired one of my...
  10. tusntuk2

    Can you replace 2sc1318 with Ksc2383 here? Sherwood S-7100A

    Wish I understood this better... how transistor application changes with the type of circuit and how it is used in this power supply and main amp. Problem: Replacing the C1318 in different circuits, (with what I have on hand). Can you can use a KSC2383 in the power supply of the Sherwood...
    • tusntuk2
    • Thread
    • c1318 ksc2383 ksc2690 power supply replace transistor s-7100a sherwood transistor application
    • Replies: 7
    • Forum: Solid State
  11. pioneervibes

    Help refurbishing Sherwood 7100A

    I was able to snag a cheap Sherwood 7100A after reading a ton of positive reviews about it on AK. It has a very weak left channel (seems to be common), so I decided to use that as my motivating factor to replace everything I can for my first project. Although, I've run into a few issues that I...
    • pioneervibes
    • Thread
    • recap refurbish restoration sherwood
    • Replies: 23
    • Forum: DIY
  12. jpreza

    Sherwood S-8900 Humming

    Happy Friday everyone, Hooked up an old Sherwood S-8900 receiver (NOT the 'A' model) that I bought a few years ago. This unit is now over 50+ years old and noticed that when I first turn it on, I get a small humming (I'd call it more of a buzzing sound) through the speakers or headphones...
  13. James Cox

    Sherwood s-7900 with a dead right channel

    So I picked up a Sherwood s-7900 in beautiful cosmetic condition. Actually I picked up an entire carload of gear and after getting a pioneer sx-3700 and sx-780 sorted out(for the most part, still waiting on some final parts to fix a problem with the phono stage) and ordering some parts for the 2...
    • James Cox
    • Thread
    • dead channel diy repair s-7900 sherwood solid state transistor
    • Replies: 4
    • Forum: Solid State
  14. R

    Help with repair on Sherwood s-2750cp

    I picked up this receiver at an estate sale and the left channel doesn’t work. The switches also don’t seem to make a good connection. Any ideas on repair would be appreciated.
  15. jpreza

    Sherwood S-8900 restoration list

    Good evening everyone, First of all, on the eve of Thanksgiving, I'd like to give thanks to all of those who keep this awesome site going. I've learned so much since I joined. With that said, I recently acquired a Sherwood S-8900 receiver (NOT the 'A' model). I noticed that when I first plug...
  16. SJoannette

    Sherwood RV-4050R

    Hi to everyone's Yesterday, someone gave me a Sherwood RV-4050R amplifier. Except for the volume potentiometers that have to be clean, everything seems to work like a charm. I notice that the main capacitors begins to be very inflated (pictures included). The problem is there is nothing written...
  17. Bpscorn

    Snog, Marry and Avoid, except its HiFi and "Sell, Donate or Keep"

    Due to an unforeseen redundancy I have had to make a tough call and have decided to sacrifice some of my HiFi Kit to help ends meet. I do have an excess and that doesn't count the stuff I was planning on repairing. Because I'm still no expert I'd like some advice on what to keep for A: my main...
  18. Keneye

    CRC QD Cleaner safe for tuners?

    Just got a Sherwood S7200 receiver. Was reaching for my Deoxit D5 when I saw AK posts on not using it on Sherwoods as Deoxit is not plastic safe. I have Deoxit F5 which says is plastic safe. But some AKers disagree. CRC QD is plastic safe and has good Amazon reviews. This is the blue can not the...
  19. G

    Sherwood PD-728B

    Hello All, Does anyone have any information on how to adjust the "lead-out" adjustment? Turntable works fine otherwise but at the end of the record it stays in the lead-out area and will not automatically return to the rest position. Being that Vinyl Engine seems to be off line, I can not get...
  20. M

    Help with my "new" Sherwood S-7100

    Long time lurker here and first poster... so nice to meet y'all. I just picked up a Sherwood S-7100 in beautiful condition from craigslist in my area. It's honestly a beautiful receiver listing right now with headphones and it sounds stellar. And no power issues with the volume knob! *crosses...
    • Mikey$5
    • Thread
    • question s-7100 sherwood troubleshooting
    • Replies: 3
    • Forum: Solid State
  21. taligentx

    Sherwood S-7900A - Repair and restoration

    Hi folks, here's a repair and restoration of a Sherwood S-7900A that initially had no power, and then after swapping a blown fuse would power up but had no sound on any input. It's been an interesting project, hope this helps and feedback appreciated if you see any issues or areas for...
    • taligentx
    • Thread
    • rebuild recap repair restoration restore s-7900a s-8900a sherwood
    • Replies: 42
    • Forum: Solid State
  22. E

    Sherwood s-7200 weak Right Channel FM/AM/Phono

    Hey Everyone, I picked up a Sherwood S-7200 for a nice $20. The AUX 1 and AUX 2 work just fine with output of both speaker channels and all AFTER replacing a speaker fuse. However, the Right channel is extremely weak and humming on FM / AM / Phono inputs. Loving the sound of this on the AUX...
    • Eyebolt
    • Thread
    • 7200 channel right sherwood troubleshooting
    • Replies: 0
    • Forum: Solid State
  23. CANT

    Common Cathode Resistor Bias Question

    Ok, I have a Sherwood S5000 (7591) that has been modified to allow for individual tube bias/balance adjustment but still keeps a common cathode resistor per pair. The amp came with a matched quad of JJ 7591S and I was told that the bias was set with a spectrum analyzer for the best distortion...
  24. CANT

    Power Supply / Smoothing Cap Question

    So, I'm not exactly sure how to ask this but I am curious about how values for this application are selected. I am currently working on or looking at a Sherwood S5000 II (7591) but general/generic answers are welcome and of interest because this unit has been modified. I bought this amp because...
  25. Wrongdog

    BC169 substitutes? Sherwood S-8900A S-7900A

    Any one have any advice? What is the difference between the BC169N Green dot??? Thanks for any help - I am WAY over my head with this stuff. Is a KCS1845 a good candidate?
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