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  3. HEATHKIT AA-20

HEATHKIT AA-20 Tube Preamp

Aa-20 Heathkit Tube Preamp

( Brand: Heathkit ), ( Model: AA-20 ), ( Type: Tube Preamp ), ( Country/region Of Manufacture: United States )

Review HEATHKIT Tube Preamp

The Aa-20 Heathkit Tube Preamp is a vintage audio enthusiast's dream. This preamplifier is a testament to the golden era of audio technology, when tubes were the heart of high-fidelity sound.

The Aa-20 is built around two 6N1P tubes, known for their warm and rich sound quality. The preamp features a simple yet elegant design, with a silver-colored chassis and knobs. The front panel houses two input selector knobs, a volume control knob, and an on/off switch. The input selector knobs allow you to switch between two sources, making it easy to connect multiple audio devices.

The Aa-20 Heathkit Tube Preamp is a passive preamplifier, meaning it does not require a power source beyond the connected audio devices. This makes it a great option for those looking to add a vintage touch to their audio setup without the complications of a power supply.

The sound quality of the Aa-20 is its standout feature. The tubes provide a warm, rich sound that is often missing in modern digital audio devices. The preamp has a smooth frequency response, with a slight roll-off in the high frequencies, resulting in a sound that is both detailed and forgiving.

The Aa-20 Heathkit Tube Preamp is a piece of audio history that can bring a touch of nostalgia to any modern audio setup. Its simple design, warm sound, and passive operation make it a great choice for audiophiles who appreciate the classic sound of tube audio.

Pros of buying a AA-20 Heathkit Tube Preamp:

1. Authentic Tube Sound: The AA-20 uses vintage tubes, providing a warm and rich sound that is difficult to achieve with solid-state preamps.

2. DIY Experience: Assembling a Heathkit preamp can be a rewarding and educational experience for those interested in electronics and audio.

3. Customization: The ability to customize the preamp's components allows for a more personalized sound.

4. Durability: Tube preamps, when properly maintained, can last a lifetime, providing long-term value.

Cons of buying a AA-20 Heathkit Tube Preamp:

1. Complex Assembly: Heathkit preamps are known for their detailed instructions, but the assembly process can be time-consuming and challenging for those without experience in electronics.

2. Cost: The initial investment in the kit, tubes, and tools can be higher than buying a pre-assembled preamp.

3. Maintenance: Tube preamps require regular maintenance, such as tube replacement and cleaning, to ensure optimal performance.

4. Size and Weight: Tube preamps are often larger and heavier than solid-state preamps, which may not be ideal for those with limited space or mobility.

Conclusion:

The AA-20 Heathkit Tube Preamp offers a unique and authentic sound, along with the opportunity for a DIY experience and customization. However, the assembly process can be complex, and the initial investment and maintenance requirements may be higher than those of pre-assembled preamps.

If you are interested in electronics, have the time and patience for a DIY project, and value the unique sound of tube preamps, the AA-20 Heathkit Tube Preamp may be a worthwhile investment. On the other hand, if you are looking for a more straightforward and cost-effective solution, a pre-assembled solid-state preamp may be a better fit for your needs.

Details:

Tubes are 5 12ax7's:bugle boy 70 75 bugle 75 Ting sol 80 sylvan 85 heathkit Millard 75it comes with some nice that measure in the good section of b k 625 tester. I have run out of time to work on it. The preamp has no hum.

It still has the original sockets shields. Heathkit AA-20 tube preamp. I had a request to ship out of north America, and have activated it in the shipping.

As mentioned above the preamp still requires a bit work to complete it. The phono section has a bit of hum still and not been completed. Comes with the rare original construction manual sold as is.

part #: aa20 prices

  • $45.00-$145.00

specifications cassettevintagee:

  • brand: Heathkit
  • model: Aa-20
  • type: Tube Preamp
  • country/region of manufacture: United States

General cassettevintagee:

  • consumer electronics > vintage electronics audio video consumer electronics > vintage cassette decks
  • in stock: Yes

Offer cassettevintagee:

  • Sold: 0
  • Started: February 25, 2017, 8:14 am
  • best offer: false
  • : true
  • min. bid: $375.00
  • bids: 0
  • quantity: 1

Seller cassettevintagee:

  • zipcode: N6P0A1
  • city: London, Ontario

Ratings:

  1. FAST PAYMENT---GREAT 01-21-17
  2. Hope to deal with you again. Thank you. 01-24-17
  3. Excellent buyer, Super Fast Payment, Thank You A 12-07-16
  4. excellent buyer,lovely and fast payment,we appreciated 11-29-16
  5. Great communication. A pleasure to do business with. 02-21-17

Returns cassettevintagee:

  • policy: no returns

Payments cassettevintagee:

  • PayPal

Shipping cassettevintagee:

  • handling: 2 days
  • type: Calculated
type: tube preamp, country/region of manufacture: united states,
category: electronics > vintage electronics audio video consumer > vintage cassette decks, sku: 1797580914945271,
Review#1 FAST PAYMENT---GREAT ()
Review#2 Hope to deal with you again. Thank you. ()
Review#3 Excellent buyer, Super Fast Payment, Thank You A ()
Review#4 excellent buyer,lovely and fast payment,we appreciated ()
Review#5 Great communication. A pleasure to do business with. ()
Heathkit AA-20 Is Similar To:
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2 offers $45.00–$145.00 USD
  • Unspecified. Offer #1 priced at $45.00 + $10.00 shipping estimate = $55.00* total. FYI: PART # 54-71 (P: 117V; S: 120V 12mA, 2 x 6.3V 1A) is used in HEATHKIT , AA-141A, SP-2, SP-2A.+$10.00 shipping
  • New. Offer #2 priced at $145.00 + $8.95 shipping estimate = $153.95* total. Parts for complete recap of all the electrolytic capacitors. A proper restoration must replace all electrolytic, paper, film, oil capacitors.+$8.95 shipping

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