HEATHKIT 6BQ5-EL84 Tube Stereo Power Amplifier AA-151

( Brand: Heathkit ), ( Model: AA151 ), ( Part Type: Tube Amplifier )

Review HEATHKIT Tube Stereo Power Amplifier Output Works

The Heathkit AA-151 Tube Stereo Power Amplifier, model number 6BQ5-EL84, is an iconic piece of audio equipment that harkens back to the golden age of hi-fi. This vintage amplifier is a testament to the craftsmanship and innovation that defined Heathkit's legacy.

The AA-151 is a dual-mono, push-pull, class AB amplifier designed for use with EL84 or 6BQ5 tubes. It delivers a powerful 15 watts per channel into 8 ohms, providing a rich, warm, and dynamic sound that is hard to replicate with solid-state amplifiers. The amplifier's pure Class AB design ensures that it delivers a balanced and evenly distributed power output, resulting in a clear and detailed sound stage.

The AA-151 features a sleek and sturdy chassis made of high-quality steel, with a black Hammertone finish that adds a touch of elegance to any audio setup. The front panel is adorned with a row of easily accessible controls, including input selection switches, volume knobs, and a power switch. The amplifier's tubes are easily accessible through a removable cover, making maintenance and tube replacement a breeze.

One of the standout features of the AA-151 is its dual-mono design, which separates the left and right audio channels into two independent amplifier circuits. This design ensures that each channel is processed independently, resulting in a more accurate and balanced sound. Additionally, the AA-151's transformer-coupled output stage ensures a smooth and linear frequency response, resulting in a sound that is rich in detail and depth.

The Heathkit AA-151 Tube Stereo Power Amplifier is a true audiophile's dream, offering a unique and captivating listening experience that is hard to find in modern audio equipment. Whether you're a vintage audio enthusiast or simply looking for a high-quality stereo amplifier, the AA-151 is sure to exceed your expectations.

1. Authentic Tube Sound: The 6BQ5 and EL84 tubes used in this amplifier provide a warm, rich, and natural sound that is not replicated by solid-state amplifiers.

2. DIY Experience: Assembling the kit yourself allows you to gain hands-on experience with electronics and improve your soldering and wiring skills.

3. Customizability: Since you build it yourself, you can customize the amplifier to meet your specific needs, such as modifying the tone control or adding a headphone output.

4. Value for Money: The kit is relatively affordable compared to buying a pre-assembled tube amplifier with similar specifications.

5. Rarity and Collectibility: The AA-151 is a classic Heathkit design, and owning a well-maintained and functioning model can be a valuable addition to a vintage audio collection.

1. Requires Time and Patience: Assembling the kit can be a time-consuming process, especially for those who are new to electronics.

2. Maintenance and Tube Replacement: Tube amplifiers require regular maintenance, including replacing the tubes when they start to fail. This can be costly and time-consuming.

3. Less Efficient: Tube amplifiers are generally less efficient than solid-state amplifiers, which means they consume more power and generate more heat.

4. Limited Power Output: The AA-151 has a relatively low power output of 10 watts per channel, which may not be sufficient for driving high-sensitivity speakers or for loud listening.

5. Potential for Damage: Improper handling or assembly can damage the tubes and other components, which can be expensive to repair or replace.

The Heathkit AA-151 Tube Stereo Power Amplifier (6BQ5-EL84) offers a unique and authentic sound experience, as well as the opportunity for a DIY project. However, it requires time, patience, and maintenance, and its power output may be limiting for some. If you are willing to invest the time and effort, and appreciate the warm, rich sound of tube amplifiers, the AA-151 can be a worthwhile investment.

If you are new to electronics and tube amplifiers, I would recommend starting with a simpler kit or pre-assembled amplifier to gain experience and familiarity with the technology before attempting the AA-151. If you are experienced with tube amplifiers and appreciate the sound they produce, the AA-151 is a classic and affordable option that can provide you with many years of listening enjoyment.

Details:

Local Canad carry is great. Cosmetics are pretty good for the age. Bottom plate is there with feet.

Metal enclosure is good. All knobs are original, and controls switches work as supposed. I placed it on a Mauriac and cranked up to 70v, both channels produced clean full music.

This appears all original, no mods. Front is good as shown in pictures only relatively minor blemishes. Chassis is average to the age. Great price.

Again, this is tested on Mauriac up to 70v, and all tubes are included except the el84. Otherwise I ship worldwide. Please examine the photos carefully, for they are part of. The tubes are all vintage no Chinese or Russian.

Because I don't know the service history, didn't want to use 115v, just a common practices all vintage electronic before. This sale is a vintage, Heathkit AA-151 tube stereo power amplifier based on 6bq5 el84 output all tubes are included except the 4 output.

part #: aa151 prices

• $550.00-$2199.00

specifications cassettevintagee:

• brand: Heathkit
• model: Aa151
• part type: Tube Amplifier

Payments cassettevintagee:

• PayPal

Returns cassettevintagee:

• policy: no returns

Offer cassettevintagee:

• Started: April 1, 2018, 8:34 pm
• quantity: 1
• best offer: true
• Sold: 0
• bids: 0

Seller cassettevintagee:

• zipcode: 94611
• city: Oakland, California

General cassettevintagee:

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

Ratings:

1. A super fast shipper. The Packing effort was A Thanks! 04-01-18
2. Nice Transformer! Thanks 04-01-18
3. venditore consigliato 03-28-18
4. Great seller, thank! 03-23-18
5. Good item. Shipping very fast. 03-30-18

Shipping cassettevintagee:

• handling: 3 days
• type: Calculated

Heathkit AA151 Is Similar To:

• A-9c Heathkit Tube Amplifier Model For Parts Or Repair Untested (50.8% similar) Heathkit tube amplifier model A-9C for parts or repair untested this unit has not been tested. Being sold for parts or repair only - the condition is as pictured...(August 26th, 2018)
• A9-b Heathkit Mono Tube Amplifier (56.8% similar) This is all the testing I did, unit should be gone over by a technician before every day use and not considered plug n play. All tubes test good. YouTube video. Be 81Q6CIHTEFC. brings you this Heathkit A9-B mono tube amplifier. Unit is in very good cosmetic condition as pictured. Tube compliment ...(January 14th, 2019)
• A9-c Heathkit Mono Tube Amplifier (56.8% similar) Below is a link to YouTube video showing amplifier being tested. YouTube video. All tubes test good. Amplifier was brought up to 80 volts where I getting clear output, this being tested by another also have for sale. Unit is in very good cosmetic condition as pictured. Tube compliment are 2-6L6, ...(January 14th, 2019)
• Aa-121 Heathkit By Daystrom Watt Stereo Amplifier Model (60% similar) As I sat there on a stool watching him, developed fondness for the probably toxic smell of solder. This Heathkit modal AA-121 amplifier was assembled by my dad in the 1960 'S. I have no reason to believe it wouldn't work now. The assembly and operation manual is included along with schematic. It ...(June 4th, 2018)
• Aa-1214 Heath Kit Vintage Heathkit Power Amplifier (55.2% similar) Heathkit AA-1214 power amplifier mint condition and serviced ,all original sound...(August 29th, 2018)
• Aa-13 Heathkit Vintage Model Amplifier (58.1% similar) Vintage Heathkit model AA-13 hi-fi amplifier brought up slowly on a Mauriac, all other functions are untested see photos for exact condition...(March 23rd, 2018)
• Aa-131 Heathkit By Daystrom Tube (41.4% similar) ...(November 25th, 2017)
• Aa-14 Heathkit Solid State Stereo Amplifier Vintage Professionally Owned (56.7% similar) The Marlboro sound recording services studio has closed its doors since passing of founder...(March 4th, 2018)
• Aa-15 Aj-29 Heathkit Pick Up Only Stereo Heath Kit Integrated Amp Fm (47.2% similar) ...(January 4th, 2019)
• Aa-161 Heathkit Mono Tube Amp Amplifier (61.7% similar) Unlike the UA1 and UA2 that have no fuse holder more crammed less in ventilated space. Each uses 4 tubes: 2 x 6AV6 12AU7 6BQ5 6CA4. Physical condition: check pictures for cosmetic condition. They are better bargain than the above model's as power amps. Shipping worldwide selling: up for sale is two ...(September 24th, 2018)
• Aa-1640 Heathkit Monster Power Amp (58.4% similar) Power output 200 watts per channel at 8 ohms and supposedly 800 mono. I am including an original advertisement in collector condition and copies of schematics building instructions. Powers on with no problems. Binding post outputs and rca jack inputs are a modification from previous owner ...(May 19th, 2017)