KGA Enclosures Ltd
Contacting KGA Enclosures
Tel: +44 (0)1535 636856
Products to be ordered via E-Mail (No Online Shop)
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Please send all orders and enquiries to, we will respond with pricing confirmation and stock availability
1627-1642 Series Tube Output (25 - 75 Watts) Single Ended - Hi-Fi
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.
  • 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 1642SE 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.
Related Products
  • For general purpose or replacement use in single ended tube output circuits see the 125SE Series.
Product Resources
Hammond Manufacturing Transformers
KGA Enclosures Ltd are full authorised distributors of the Hammond Manufacturing Transformers product range. This entire range is available from KGA Enclosures Ltd at great competitive pricing and with full customisation options on all applicable products.

To purchase any product or for more information on any product, simply call (+44) 01535 636856 or E-Mail:, where we will be happy to assist you. Or view the related product ranges from Hammond Manufacturing, which are all available from KGA Enclosures Ltd. Including the: What makes KGA Enclosures Ltd different from most other larger distributors is that we offer full customisation services on all enclosure and accessories (where applicable). All customisation work is undertaken by the relevant supplier, (some small projects are done utilizing outside contractors) at their own manufacturing facilities. These services include milling or punching of holes and slots into the enclosure or end plates for cables, connectors, switches etc. Printing and silk screening services allow for the addition of text, logos and graphics onto both the enclosure and end plates, to allow the end user to easily identify the product as well as giving the final product a more elegant finish. For more information on customisation services, please contact us.
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1627-1642 Series - Hammond Manufacturing Transformrers at KGA Enclosures Ltd
Product Options
Part No Audio Watts Impedance (Ohms) Primary Max. DC Bias Inductance 1+ 10+ 25+ More
1626SEA25600250 ma.2.9 Henrys £88.57 £81.49 £79.72 More
1627SEA302500160 ma.20 Henrys £116.46 £107.14 £104.81 More
1628SEA305000120 ma.48 Henrys £116.46 £107.14 £104.81 More
1629SEA306500100 ma.55 Henrys £116.46 £107.14 £104.81 More
1630SEA303500135 ma.15 Henrys £116.46 £107.14 £104.81 More
1638SEA301000090 ma.88 Henrys £151.40 £139.29 £136.26 More
1640SEA301250200 ma.14 Henrys £123.24 £113.38 £110.92 More
1642SE755000300 ma.53 Henrys £265.04 £243.83 £238.53 More
Please visit individual product page for more detailed information
Hammond Manufacturing - Customisation Services
Modified Electronic 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 to deliver quality products made to your exact specifications.
Hammond Manufacturing Customisation Services
Why choose Hammond Manufacturing to modify your enclosure
  • Hammond Manufacturing offers a wide selection and massive inventory of enclosures ready to be modified.
  • Typically the minimum order quantity is 25 pieces. This can vary depending on product and service required. Please note KGA Enclosures does not add on any charges.
  • Hammond has an experience 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 deign required. Many orders will also include a fast delivery of sample enclosures for your inspection. These steps ensure that your assembly fits perfectly before heading into the mass production stage.
Popular modification services 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
For Product Availability, Price Confirmation and All Ordering Please E-Mail
Contact Us
Call Us - 01535 636856 +44 (0)1535 636856
E-Mail Us -
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VAT No: GB 204612745
Business No: 09341700