Great Enclosures and Transformers at Great Prices
KGA Enclosures Ltd
Tel: +44 (0)1535 636856
1627 - 1642 Series Tube Output (25 - 75 Watts) Single Ended - Hi-Fi
1627 - 1642 Series Transformers - Hammond Manufacturing Transformers

KGA Enclosures Ltd are full authorised distributors of the Hammond Manufacturing Transformers product range. Adding the Hammond Transformers range has enabled KGA Enclosures to offer a new line of products, we now carry a large range of Audio Transformers, Power Transformers, Chokes and Reactors. All Hammond Manufacturing Transformers are available from KGA Enclosures, view the product range (Click Here) or view the product price list (Click Here). If you have any questions regarding any product offered here at KGA Enclosures Ltd please call 01535 636856 or E-Mail

What makes KGA Enclosures Ltd different from most other large distributors is that we can assist you with your full customisation services. All work is undertaken by Hammond Manufacturing Enclosures at their manufacturing facilities. These services includes milling or punching of holes and slots into the enclosure. Printing and silk screening services which allows for the addition of text, logo's and graphics onto both the enclosure and end plates, which will allow the end user to easily identify the product. All customisation charges and minimum order quantities are set by Hammond Manufacturing, KGA Enclosures does not add any charges on. For more information or a quote simply send your technical drawings and enclosure required to where we will be happy to assist you. Click here for more information on customisation options.

Product Features:
• "Over designed" for high fidelity, single ended, Class-A, tube output circuits (triode, tetrode or pentode tubes).
• Enclosed (shielded), four slot, chassis Type "X" mounting.
• Frequency response at least 20 Hz. to 20 Khz. at full rated power (+/- 1 db max. ref. 1 Khz).
• Insulated flexible leads 8" min.
• For maximum versatility, all units (except the 1642SE and 1638SEA) include a 40% screen tap for Ultra-Linear, tetrode/pentode operation (if desired). The 1642E and 1638SEA do NOT include this screen tap as they were designed principally for high impedance triode tubes.
• High quality laminations, (M6) grain oriented silicon steel.
• Core is gapped to reduce core saturation in Class-A tube amplifier circuits.
• For general purpose or replacement use in single ended tube output circuits see the 125SE Series.
View Product Data Sheet
Contact Us For Availability
Click Part No For More Information
1627 - 1642 Series Transformers Product Options
Part No Audio Watts Impedance (Ohms) Primary Max. DC Bias Inductance 1+ 10+ 50+ 100+ 500+
1626SEA 25 600 250 ma. 2.9 Henrys £90.22 £85.71 £81.20 £76.69 £72.18
1640SEA 30 1250 200 ma. 14 Henrys £125.52 £119.24 £112.96 £106.69 £100.41
1627SEA 30 2500 160 ma. 20 Henrys £118.62 £112.69 £106.76 £100.83 £94.89
1630SEA 30 3500 135 ma. 42 Henrys £118.62 £112.69 £106.76 £100.83 £94.89
1628SEA 30 5000 120 ma. 48 Henrys £118.62 £112.69 £106.76 £100.83 £94.89
1642SE 75 5000 300 ma. 53 Henrys £269.94 £256.44 £242.95 £229.45 £215.95
1629SEA 30 6500 100 ma. 55 Henrys £118.62 £112.69 £106.76 £100.83 £94.89
1638SEA 30 10000 90 ma. 88 Henrys £154.19 £146.48 £138.77 £131.06 £123.35
For more detailed information please click part number
Hammond Manufacturing Enclosures Customisation Options
Modified Electronic Enclosures
Product Customisation Services - Hammond Manufacturing Enclosures
Almost every enclosure will need some kind of modification to be useful. In house modifications can be tedious, over complicated and a distraction from your main core business. A third party shop can add time and expense. Let us help you be delivery quality products made to your exact specifications.
Why choose Hammond to modify your enclosure
• Hammond Manufacturing offers a wide selection and massive inventory of enclosures ready to be modified.
• Typically the minimum order piece is 25 pieces. This can vary depending on product and services required. Please note KGA Enclosures does not add on any charges.
• Hammond has an experienced enclosure modification team and two dedicated modification facilities in North America and the United Kingdom. They are knowledgeable, available and capable.
• Hammond Manufacturing helps eliminate scrap and design errors with approval drawings to confirm correct interpretation of your design requirements. Many orders will also include fast delivery of sample enclosures for your inspection. These steps ensure that your assembly fits perfectly before heading into the mass production stage.
Popular modifications offered:
• Holes.
• Cutouts.
• Tapping and countersinking.
• Pressed-in hardware (Studs, standoffs).
• Silk screening.
• UV printing.
• Special colours.
• Special length extrusions.
• Pre-Installed accessories.
• Available services vary by product.
Contact Details
Call Us +44 (0)1535 636856
E-Mail Us
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VAT No: GB 204612745
Business No: 09341700